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Journal articles on the topic 'Maxillary first molar'

Author: Grafiati
Published: 4 June 2021
Last updated: 19 June 2025

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1

Karlsson, Ingela, and Lars Bondemark. "Intraoral Maxillary Molar Distalization." Angle Orthodontist 76, no. 6 (2006): 923–29. http://dx.doi.org/10.2319/110805-390.

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Abstract Objective: To evaluate the maxillary molar distalization and anchorage loss in two groups, one before (MD 1 group) and one after (MD 2 group) eruption of second maxillary molars. Materials and Methods: After a sample size calculation, 20 patients were recruited for each group from patients who fulfilled the following criteria: no orthodontic treatment before distal molar movement, Class II molar relationship defined by at least end-to-end molar relationship, space deficiency in the maxilla, and use of an intra-arch NiTi coil appliance with a Nance appliance to provide anchorage. Patie
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2

Fourneau, Eléonore, and Raphael Olszewski. "Taurodontic teeth in cone beam computed tomography: pictorial review." NEMESIS Negative effects in medical science: oral and maxillofacial surgery 33, no. 1 (2023): 1–44. http://dx.doi.org/10.14428/nemesis.v33i1.81953.

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Objective: Taurodontism is a developmental disorder with enlargement of the body of the tooth and lack of cervical constriction, which results in a large pulp chamber and small roots with the apical displacement of furcation. Taurodontism exists in deciduous, and definitive unilateral, and bilateral teeth. We found that taurodontism was also described in 67 syndromes. We proposed a review of the open access literature on taurodontism, a new clinical classification of taurodontic teeth with illustrations from free open access literature, and from our case serie of 15 patients.
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3

Ashfaq, Muhammad, Mubassar Fida, and Farheen Fatima. "CBCT Based Assessment of First Molar Inclination in Adult Subjects." Journal of the Pakistan Dental Association 32, no. 01 (2023): 4–7. http://dx.doi.org/10.25301/jpda.321.4.

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OBJECTIVE: The ideal buccolingual (BL) inclination of posterior dentition allows maximum intercuspation and avoids occlusal interferences at rest and during jaw movements. Therefore the objective of present study was to evaluate the BL inclination of upper and lower first molars in adult patients. METHODOLOGY: A cross-sectional study was conducted on 52 subjects visited dental clinics. The evaluation of BL inclination of maxillary and mandibular first molars was done using CBCT images on Galaxis/Galileos implant viewer software. After sagittal orientation, the angle was measured on the tranver
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4

Kaur, Harpuneet. "Unusual occlusal morphology of permanent maxillary second molar and mandibular first molar: A case report." IP Indian Journal of Conservative and Endodontics 9, no. 3 (2024): 139–41. http://dx.doi.org/10.18231/j.ijce.2024.030.

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Typically, maxillary second molars have a different number, size, and arrangement of cusps than molar teeth, which have four cusps and a square occlusal surface. Mandibular molars are considerably less likely to have an oblique ridge, and buccal accessory cusps are very rare. This case study aimed to describe a unique case of a permanent maxillary second molar and a permanent mandibular first molar with an oblique that resembled the maxillary molar crown.
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Lee, Kyung Jin, Hyeran Helen Jeon, Normand Boucher, and Chun-Hsi Chung. "Transverse Analysis of Maxilla and Mandible in Adults with Normal Occlusion: A Cone Beam Computed Tomography Study." Journal of Imaging 8, no. 4 (2022): 100. http://dx.doi.org/10.3390/jimaging8040100.

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Objectives: To study the transverse widths of maxilla and mandible and their relationship with the inclination of first molars. Materials and Methods: Fifty-six untreated adults (12 males, 44 females) with normal occlusion were included. On each Cone Beam Computed Tomography (CBCT) image of the subject, inter-buccal and inter-lingual bone widths were measured at the levels of hard palate, alveolar crest and furcation of the first molars, and maxillomandibular width differentials were calculated. In addition, the buccolingual inclination of each first molar was measured and its correlation with
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Mamani, Jatuphol, Chidchanok Sessirisombat, Hitoshi Hotokezaka, Noriaki Yoshida, and Irin Sirisoontorn. "Effectiveness of Clear Aligners on Sequential Maxillary Molar Distalization: Discrepancy between Treatment Goal and Outcome." Journal of Clinical Medicine 13, no. 14 (2024): 4216. http://dx.doi.org/10.3390/jcm13144216.

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Objectives: The purpose of this preliminary study was to determine the differences between planned and actual maxillary molar movements after the completion of treatment with an initial set of clear aligners including sequential maxillary molar distalization. Methods: The data records of 14 non-growing patients who completed orthodontic treatment with sequential maxillary molar distalization using clear aligners were retrospectively evaluated (n= 14, 4 males and 10 females, 33.61 ± 8.57 years). Data on planned tooth movements were obtained from ClinCheck software (ClinCheck Pro version 5.3). T
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Balachandran, Dr Hrudya, Dr Shafeequdheen Pp, Dr Shaji T. Varghese, Dr Megha C. Unni, and Dr Suparna Kc. "Evaluation Of Bone Thickness At Different Anatomical Sites In Infrazygomatic Crest For Miniscrew Insertion In Skeletal Class II Patients – A CBCT Study." IOSR Journal of Dental and Medical Sciences 23, no. 10 (2024): 11–17. http://dx.doi.org/10.9790/0853-2310031117.

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AIM: To assess infrazygomatic crest bone thickness at different anatomical sites at a distance of 5mm, 7mm, 9mm and 11mm apical to cementoenamel junction, 70 degree to occlusal plane in skeletal class II patients using cone beam computed tomography (CBCT). Materials and Methods: The sample consists of cone beam computed tomography images of 23 class II subjects were evaluated. Infrazygomatic crest bone thickness was evaluated at the six horizontal regions (i) interdental area between maxillary second premolar (PM2) and first molar(M1) (ii) Mesiobuccal root of maxillary first molar (MB root of
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Dr Radhika N B, Dr Radhika N. B., Dr Krishna Nayak, and Dr KU Cariappa Dr KU Cariappa. "Maxillary Third Molar Eruption and its Relationship to Inclination of Maxillary First Molars - a Computed Tomography Study." International Journal of Scientific Research 2, no. 12 (2012): 18–20. http://dx.doi.org/10.15373/22778179/nov2013/182.

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9

Hu, Kyung-Seok, Min-Kyu Kang, Tae-Won Kim, Kyung-Ho Kim, and Hee-Jin Kim. "Relationships between Dental Roots and Surrounding Tissues for Orthodontic Miniscrew Installation." Angle Orthodontist 79, no. 1 (2009): 37–45. http://dx.doi.org/10.2319/083107-405.1.

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Abstract Objective: To elucidate relationships between the dental roots and surrounding tissues in order to prevent complications after placement of a miniscrew. Materials and Methods: Twenty human mandibles and maxillas were used for this study. In the 200 sections of each mandible and maxilla, nine items were measured to investigate the relationships between the dental roots. Results: The interroot distance increased from anterior to posterior teeth and from the cervical line to the root apex in both the maxilla and the mandible. In the maxilla, the greatest interroot distance was between th
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Heliotis, Isabelle, Manpreet Gakhal, and Rosemary Whatling. "Resorption of maxillary first permanent molars by impacted maxillary second premolars: A case series." Dental Update 47, no. 11 (2020): 946–49. http://dx.doi.org/10.12968/denu.2020.47.11.946.

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Although rare, resorption of the first permanent molar caused by impaction of the second premolar does occur. Three paediatric patients with impacted upper second premolars, distinct symptoms and signs of resorption are described. One case with clear resorption of the upper molar on initial presentation was managed immediately with extraction of the first permanent molar. Eruption of the impacted premolars was monitored in the other two cases, but symptom changes and sectional cone beam computed tomography (CBCT) highlighted resorption of the first permanent molars. In both cases the resorbed
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11

Kharouf, Naji, Youssef Haïkel, and Davide Mancino. "Unusual Maxillary First Molars with C-Shaped Morphology on the Same Patient: Variation in Root Canal Anatomy." Case Reports in Dentistry 2019 (October 22, 2019): 1–10. http://dx.doi.org/10.1155/2019/1857289.

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A maxillary first molar should be considered a four-canal tooth until proved otherwise; however, a clinician should also be aware of the possibility of the presence of C-shaped root canal configuration with or without possibility of splitting into two or three canals. The two clinical cases reported in this paper describe the endodontic treatment of two maxillary first molars, on the same patient, with uncommon anatomy: the first case is about a maxillary first molar with only one C-shaped root and one oval canal with a large buccolingual diameter, a C1 type according to Fan’s classification;
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12

Ismail, Muhammad Ridwan Yeop, W. I. Wan Ab Rahman, and A. Anuar. "Anatomical Relationship between Root Apices of Maxillary First Molars and Maxillary Sinus Floor Using Computed Tomography." Malaysian Journal of Oral and Maxillofacial Surgery 22, no. 1 (2024): 1–5. https://doi.org/10.4103/mjoms.mjoms_9_24.

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Abstract Background: The posterior maxillary teeth roots are anatomically located close to the maxillary sinus floor. Due to this, one might develop complications while undergoing certain oral surgical procedures involving maxillary posterior teeth. The occurrence of oroantral communication following tooth extraction has been reported in maxillary first molars as it erupts first and is frequently extracted at an early age. Aims: This study aims to assess the relationship between the root apices of the maxillary first molar and the maxillary sinus floor and to measure the distance between these
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Sheikh, Md Abdul Hannan, Taib Bin Badsha, Md Mujibur Rahman Howlader, and Mirza Md Arifur Rahman. "Frequency of Second Mesiobuccal Canal in Permanent Maxillary Molars: An Observational Study." Journal of Bangladesh College of Physicians and Surgeons 42, no. 2 (2024): 133–38. http://dx.doi.org/10.3329/jbcps.v42i2.72351.

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Background: The success of root canal therapy in endodontics is heavily dependent on identifying a second mesiobuccal canal (MB2) in permanent maxillary molars. A comprehensive understanding of internal anatomy, particularly the recognition of MB2, is crucial for the effective treatment of this commonly encountered tooth. This study aimed to investigate the prevalence and occurrence of the second mesiobuccal canal in permanent maxillary first and second molars. Methods: This cross-sectional study that was conducted at the Department of Conservative Dentistry & Endodontics, Military Dental
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Pallippurath, Girish, Neeta Shetty, Rayapudi Phani Mohan, Manuel S. Thomas, and Arjun Tallada. "Evaluation of the Root and Canal Morphology of Maxillary First and Second Molar using Cone Beam Computed Tomography: A Retrospective Study." World Journal of Dentistry 8, no. 2 (2017): 134–38. http://dx.doi.org/10.5005/jp-journals-10015-1426.

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ABSTRACT Aim The aim of this study was to investigate the root and canal morphology of maxillary first and second molars in Southern West Coastal Indian population using cone beam computed tomography (CBCT). Materials and methods Cone beam computed tomography images of (n = 143) maxillary first molar and (n = 139) maxillary second molar were obtained from Southern West Coastal Indian population. The number of roots, root canals, and presence of second mesiobuccal (MB2) canal were determined. Results Two roots were seen only in 1.4% of first molars and 8.6% of second molars. Three- rooted were
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EL MASRIL, Souheir Saad, and Roula ABIAD. "Maxillary first molar with extra palatal canals." International Arab Journal of Dentistry 11, no. 1 (2020): 33–36. http://dx.doi.org/10.70174/iajd.v11i1.454.

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Knowledge of the root canal anatomy and its variations is essential for successful completion of the endodontic treatment. Root canal treatment of maxillary first molars with aberrant canal configuration can be challenging. The incidence of two palatal canals in a palatal root is quite rare and had never been reported among Lebanese population. This manuscript reviews the incidence of maxillary molars with two palatal root canals reported in the literature as well as reporting the endodontic management of a maxillary first molar having two canals in the palatal root one mesial and another dist
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Al-Sarkhi, Rak, Suhad Mohammed Ali Sadeq, and Noor Mohammed Al-Noori. "Comparative Study of Mesiodistal Crown Dimensions and Tooth Size Discrepancies of Thalassemia and Control Iraqi Patients." European Journal of Dental and Oral Health 5, no. 3 (2024): 8–11. http://dx.doi.org/10.24018/ejdent.2024.5.3.277.

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Aims: To find differences in mesiodistal tooth width in Iraqi B thalassemia compared with normal individuals. Setting and design: 44 subjects, 22 thalassemia (11 males, 11 females) (12.5–22) years, and 22 control (11 males, 11 females) 14–23 years. Methods and Material: Registrations of MD for maxillary and mandibular teeth from the first molar on one side to analogous tooth on the other side were done. Statistical analysis: Mean, standard deviation and 2-sampled t-test were used. Results: In both groups, males’ crown size was greater than females. In the study group largest gender variances a
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Park, Hyo-Sang, Bong-Kyu Jang, and Hee-Moon Kyung. "Maxillary molar intrusion with micro-implant anchorage (MIA)." Australasian Orthodontic Journal 21, no. 2 (2005): 129–35. http://dx.doi.org/10.2478/aoj-2005-0016.

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Abstract Background: Intrusion of the maxillary molars is difficult to accomplish using traditional methods of anchorage. Aims: To describe methods of maxillary molar intrusion with the aid of micro-implants. Methods: Micro-implants provide stable intra-oral anchorage and enable the maxillary molars to be intruded without the usual side effects. Three adult patients are presented showing how micro-implants can be used to intrude the maxillary molars. In the first patient micro-implants were placed in the alveolar process between the second premolar and first molar, in the second patient micro-
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Javed, Sana, Mahwash Malik Baloch, Muhammad Shoaib, Asad Tahir, Shuja Aslam, and Abdul Ghani Shaikh. "Determination of Eruption Timings of Mandibular and Maxillary First Permanent Molar and its Association with BMI of Children." Pakistan Journal of Medical and Health Sciences 16, no. 5 (2022): 1418–20. http://dx.doi.org/10.53350/pjmhs221651418.

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Objective: To determine the association of eruption timing of the mandibular and maxillary first permanent molars with BMI of children in school children of Hyderabad. Subject and Methods: A total of 704 (364 boys 340 girls) school children from various government schools of Hyderabad city were enrolled in the study. All the children were in age range on 5 to 8 years. A dental examination was conducted to determine the presence of permanent mandibular and maxillary first molars. Children's height and weight were recorded in meters and kilograms, and their BMI was calculated. The SPSS version 2
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Nam, Ok Hyung, Hyo Jung Ahn, Mi Sun Kim, and Jae-Hong Park. "Treatment of Ectopic Permanent Maxillary First Molar Using a K-loop." Journal of Clinical Pediatric Dentistry 39, no. 4 (2015): 387–91. http://dx.doi.org/10.17796/1053-4628-39.4.387.

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Ectopic eruption of permanent maxillary first molar can cause root resorption of adjacent primary second molar, thus leading to early loss of primary maxillary second molar. Therefore, it is necessary to correct ectopic maxillary first molar. This case report demonstrates that K-loop can be used as a simple, comfortable, and easier method to correct ectopic eruption of permanent maxillary first molar in existing severe root resorption on adjacent primary second molar.
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Alhujhuj, Rakan Rafdan, Rizwan Jouhar, Muhammad Adeel Ahmed, Abdullatif Abdulrahman Almujhim, Mohammed Tariq Albutayh, and Necdet Adanir. "Evaluation of Root Canal Configuration of Maxillary and Mandibular First Molar by CBCT: A Retrospective Cross-Sectional Study." Diagnostics 12, no. 9 (2022): 2121. http://dx.doi.org/10.3390/diagnostics12092121.

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Adequate knowledge of root canal morphology along with its probable variations is imperative to acquire successful endodontic treatment. This retrospective cross-sectional study aimed to investigate the root canal configuration of maxillary and mandibular first molar using Cone-Beam Computed Tomography (CBCT) among patients in Al-Ahsa region, Saudi Arabia. A total of 377 samples were included, out of which 123 CBCT (I-CAT Vision QTM) scans with intact all first permanent molars were selected in this study and scanned in sagittal, axial, and coronal views by using BlueSkyPlan software. The numb
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Mohammad Abdurrahman Khan, Manisha Verma, Anoop Kumar Verma, Syed Belal Hassan, Syed Fiza Mustaqueem, and Iram Khan. "Sex Estimation using Mandibular First Molar and Maxillary First Molar: A Comparative Study." Indian Journal of Forensic Medicine & Toxicology 18, no. 3 (2024): 59–65. http://dx.doi.org/10.37506/191vcx09.

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Introduction: Estimation of sex from skeletal remains is an important initial medicolegal aspect of forensic and anthropological examination. Among various methods of sex estimation only DNA analysis gives absolute proof of sex estimation, but such methods are meticulous, immoderate and relatively prolonged and involves difficult DNA extraction technique. Teeth are strongest and toughest structure in the human body which are resistance to fire, decomposition and many other changes and teeth development completed before bone maturation making teeth relevant sex indicator hence teeth can be used
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Li, Chenshuang, and Chun-Hsi Chung. "A Simple Technique Using a Modified Nance Appliance as Anchorage for Maxillary Molar Distalization—Two Case Reports." Applied Sciences 12, no. 2 (2022): 768. http://dx.doi.org/10.3390/app12020768.

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Maxillary molar distalization to correct a dental Class II molar relationship and to create space to relieve crowding has been a long-lasting subject of debate in orthodontics. Generally, to distalize maxillary molars, an intra-arch distalization appliance is favored over an inter-arch appliance since it does not utilize mandibular dentition as an anchorage, so some unwanted side effects on mandibular incisors can be avoided. A variety of intra-arch appliances have been developed to distalize maxillary molars, such as the pendulum, Jones jig, first class appliance, distal jet, and modified C-p
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Alkhatib, Rola, and Chun-Hsi Chung. "Buccolingual inclination of first molars in untreated adults: A CBCT study." Angle Orthodontist 87, no. 4 (2017): 598–602. http://dx.doi.org/10.2319/110116-786.1.

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ABSTRACT Objective: To evaluate the buccolingual inclinations of maxillary and mandibular first molars in untreated adults. Materials and Methods: Fifty-nine subjects (14 males and 45 females; mean age, 41.2 years) with no missing teeth, no crossbite, and minimal crowding were included. For each subject, a CBCT was taken. The long axis of each first molar was determined, and the inclination of each molar was measured using the long axis and the floor. Results: One hundred seventeen out of 118 mandibular first molars measured had a lingual inclination, with a mean of 12.59° ± 5.47°. For the max
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Altalhi, Faisal Khalid, Abdullah A. Alzamil, Bandar S. Shukr, Abdulaziz A. Alharbi, and Ahmed S. Kowsar. "Impacted maxillary permanent first molar." Saudi Journal of Oral Sciences 11, no. 2 (2024): 151–54. http://dx.doi.org/10.4103/sjoralsci.sjoralsci_36_24.

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Abstract Tooth impaction is an abnormality that occurs when a tooth does not emerge into its place in the dental arch. Impacted permanent molar is an unusual condition that is usually detected during a routine examination. This impaction type is mostly problematic and can cause serious issues, especially when early detection and appropriate treatment are not achieved. This article highlights a case with a complaint of an ill-fitting denture, accompanied by an impacted molar that was identified during routine radiographic examination. The available treatment options include periodic follow-up,
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Mulay, Sanjyot, Gaurav Kadam, and Hansa Jain. "Accuracy of Various Diagnostic Aids in Detection of MB2 Canal in Maxillary First Molar: In vivo Study." World Journal of Dentistry 7, no. 2 (2016): 78–82. http://dx.doi.org/10.5005/jp-journals-10015-1369.

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ABSTRACT Aim To evaluate and compare the accuracy of radiographic, visual, dye and magnification method in detection of second mesiobuccal (MB2) canal in maxillary first molar. Materials and methods One hundred males and females patients in age group of 20 to 45 years with maxillary first molar teeth indicated for root canal treatment were selected for the study. The presence of MB2 canal in maxillary first molar was observed by four independent observers using radiographic, visual, dye, magnification diagnostic aids. Results The study showed that there was a large difference in detecting MB2
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Janakiraman, Nandakumar, Pawandeep Gill, Madhur Upadhyay, Ravindra Nanda, and Flavio Uribe. "Response of the maxillary dentition to a statically determinate one-couple system with tip-back mechanics: A prospective clinical trial." Angle Orthodontist 86, no. 1 (2015): 32–38. http://dx.doi.org/10.2319/012815-68.1.

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ABSTRACT Objective: To quantify the effects of tip-back mechanics on the maxillary first molars and incisors. Materials and Methods: Sixteen subjects with Class II end-on malocclusion were treated with an intrusion arch to achieve distalization of the maxillary molar through tip-back mechanics. Lateral cephalograms were taken prior to molar tip-back (T1), after molar tip-back (T2), and after molar root uprighting (T3). Data were analyzed using the Friedman’s and Wilcoxon signed rank tests to evaluate differences in time points (P ≤ .016). Results: The maxillary first molar distalized 1.53 mm (
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Gulati, Shreya, Sanjyot A. Mulay, Vaibhavi Raut, Swapnil Bhosale, Aishwarya Srinivasan, and Mahesh Chavan. "Analysis of apical third root canal morphology of the palatal root of maxillary first molar and its proximity to maxillary sinus: A cone-beam computed tomographic study." Endodontology 35, no. 3 (2023): 262–66. http://dx.doi.org/10.4103/endo.endo_196_22.

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ABSTRACT Aims: The aim of this study was to assess the angulation of the apical exit from radiographic apex of palatal root of maxillary first molar, to measure the distance between radiographic apex and apical exit of palatal root of maxillary first molar and to measure the distance of apical exit of palatal root of maxillary first molar from maxillary sinus floor. Materials and Methods: A total of 118 untreated, well-developed maxillary first molars were selected on cone-beam computed tomography scans. Data were collected and viewed by invivo5 software. Descriptive statistical analysis was g
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Kurokawa, Makoto, Hiroyuki Kanzaki, Hajime Tokiwa, et al. "The main occluding area in normal occlusion and mandibular prognathism." Angle Orthodontist 86, no. 1 (2015): 87–93. http://dx.doi.org/10.2319/111114-807.1.

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ABSTRACT Objective: To clarify whether the concept of main occluding area, where hard food is initially crushed, exists in patients who have a jaw deformity. Materials and Methods: Nineteen subjects with normal occlusion, 18 patients with mandibular prognathism, and 11 patients with mandibular prognathism who had undergone orthognathic surgery participated in this study. The main occluding area was identified by clenching Temporary Stopping. The coincidence, location of the main occluding area, and distance from the first molars to main occluding area were examined. Results: High coincidence o
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Pandey, Nashib, Sujaya Gupta, Ankit Shah, Anju Khapung, and Bhageshwar Dhami. "Sub Sinus Ridge Height at First Molar Region- A Panoramic Radiograph Based Study." Journal of Nepal Health Research Council 18, no. 2 (2020): 243–47. http://dx.doi.org/10.33314/jnhrc.v18i2.2675.

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Background: Among various replacement options available for maxillary molars, implants necessitate the need to examine available ridge height and width. Panoramic radiographs (orthopantomograms) are routinely used for preliminary determination of ridge height which is helpful in communicating with patients regarding treatment needs and options. This study was designed with the aim to assess the sub sinus ridge height at dentulous and edentulous first molar sites.Methods: A cross-sectional study was conducted from March to November 2019 among patients visiting the dental college. The orthopanto
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Al-Obaid, Maryam Mohammed, and Fatima Abdullah Al-Sheeb. "Root Canal Morphology of Maxillary First and Second Molars in a Qatari Population: A Cone-Beam Computed Tomography Study." European Dental Research and Biomaterials Journal 2, no. 01 (2021): 34–38. http://dx.doi.org/10.1055/s-0041-1731625.

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Abstract Objective The purpose of this study was to evaluate the number of roots and canal configuration of maxillary first and second molars in Qatari population. Materials and Methods A total of 544 cone-beam computed tomography (CBCT) records of Qatari patients were included in this study. The CBCT images were reviewed by two endodontists. The age, sex, bilateral symmetry, root number, and canal configuration according to Vertucci were tabulated. Results About 97.5% maxillary first molars had three roots and 2.5% had two roots. Maxillary second molar showed 88.2% three roots, 7.3% two roots
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Jawad, Dr Kadhim Jawad, Dr Raed Aziz Aziz, and Dr Mohammed K. Gholam. "Root trunk height of maxillary and mandibular permanent first molars in Iraqis (a pilot study)." Mustansiria Dental Journal 5, no. 1 (2018): 26–30. http://dx.doi.org/10.32828/mdj.v5i1.497.

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Although the Root Trunk Height (RTH) as a variable in different racial groups was extensively studied, but its relation to the presence and absence of other anatomical abnormalities as Cervical Enamel Projection (CEP) never been tested. On the other hand, data focused on this variable in our community are not available. So the aim of this pilot study is to provide a base line data on this important anatomical variable (RTH) in our community and to calculate its possible correlation to the presence of (CEP). In this study (242) extracted permanent molars (126 maxillary first molar and 116 mandi
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Sayadizadeh, Mahsa, Raziyeh Shojaeipour, Hamidreza Poureslami, Sajad Raeisi Estabragh, and Maryam Sharifi. "In vitro comparison of microleakage with two different techniques of placing stainless steel crowns on mandibular deciduous first molar teeth with decreased mesiodistal width." Journal of Dental Research, Dental Clinics, Dental Prospects 16, no. 1 (2022): 35–39. http://dx.doi.org/10.34172/joddd.2022.006.

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Background. Stainless steel crowns (SSCs) of the opposing maxillary deciduous molar teeth are used in mandibular deciduous first molars with decreased proximal surfaces due to caries. However, the SSCs of maxillary deciduous molar teeth are different from those of the mandibular deciduous molars in terms of the occlusal surface morphology, the buccal margin, and the proximal surface contour. Therefore, it is possible to prepare the buccal and lingual surfaces to use the SSC of the lower deciduous molar teeth and compare microleakage. Methods. Eighty extracted mandibular deciduous first molars
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Ogura, Hiroki, Kento Numazaki, Toshihito Oyanagi, et al. "Three-Dimensional Evaluation of Treatment Effects and Post-Treatment Stability of Maxillary Molar Intrusion Using Temporary Anchorage Devices in Open Bite Malocclusion." Journal of Clinical Medicine 13, no. 10 (2024): 2753. http://dx.doi.org/10.3390/jcm13102753.

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Background: We investigated treatment outcomes and post-treatment stability in 10 patients with an anterior open bite and nonsurgical orthodontics. Methods: The patients underwent maxillary molar intrusion using temporary anchorage devices (TADs) to deepen the overbite due to mandibular autorotation. Lateral cephalograms and dental cast models were obtained before treatment (T0), immediately after it (T1), and >1 year after it (T2). Skeletal and dental cephalometric changes and three-dimensional movements of the maxillary dentitions were evaluated. Results: At T0, cephalometric analysis ind
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Alharthi, Dalia, Reema K. Abumelha, Deema M. AlOjayen, Nouf S. Alanezi, Reema M. Aldakheel, and Abdulaziz S. Abumelha. "Evaluation of Prevalence and Cause of Endodontic Treatment of Permanent Molars in 10-Year-Old Children of Riyadh, Saudi Arabia." Journal of Pharmacy and Bioallied Sciences 16, Suppl 1 (2024): S856—S858. http://dx.doi.org/10.4103/jpbs.jpbs_1059_23.

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ABSTRACT The study aimed to assess the prevalence and cause of endodontic treatment in the first permanent molars of children aged ten in Saudi Arabia. Out of 824 children, 104 had dental caries, with a prevalence rate of 12.62%. The research revealed that the most involved teeth were mandibular left first molar, followed by mandibular right first molar, maxillary left first molar, and maxillary right first molar. Majority of patients had grossly decayed teeth, followed by caries, restorations, and endodontic treatment. The study emphasizes the importance of early dental consultations to reduc
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Kravitz, Neal D., Budi Kusnoto, Peter T. Tsay, and William F. Hohlt. "Intrusion of Overerupted Upper First Molar Using Two Orthodontic Miniscrews." Angle Orthodontist 77, no. 5 (2007): 915–22. http://dx.doi.org/10.2319/050106-187.1.

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Abstract Loss of the mandibular first molar often leads to the overeruption of the opposing maxillary first molar, resulting in occlusal interference, loss of periodontal bony support, and inadequate room to restore the mandibular edentulous space. Without orthodontic molar intrusion or segmental surgical impaction, restoring the posterior occlusion often entails the need for significant reduction of maxillary molar crown height, with the potential need for costly iatrogenic root canal therapy and restoration. The literature has cited successful maxillary molar intrusion with minor prosthodont
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36

Kamble, Ranjit, Ananya Hazarey, Pushpa Hazarey, and Jeet Singh. "Assessment of Positional Variation of Maxillary Permanent First Molar with respect to the Infrazygomatic Crest (Key Ridge) in Skeletal Class I, II and III Cases." World Journal of Dentistry 4, no. 4 (2013): 228–34. http://dx.doi.org/10.5005/jp-journals-10015-1237.

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ABSTRACT Introduction To assess the positional variations of maxillary first permanent molar in horizontal and vertical plane with respect to infrazygomatic crest (key ridge) in skeletal class I, II and III cases. Materials and methods A total of 103 lateral cephalograms comprising of 40 skeletal class I (control group), 35 class II and 28 class III cases were selected and analyzed. Six parameters were chosen to compare the vertical and the horizontal variations of first permanent molars. Results The angulation of maxillary first molar with respect to key ridge in class II and III was 2.42° an
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Aslıer, Mustafa, Mustafa Cenk Ecevit, Sülen Sarıoğlu, and Semih Sütay. "A Case of Ameloblastic Fibroodontoma Extending Maxillary Sinus with Erupted Tooth: Is Transcanine Approach with Alveolectomy Feasible?" Case Reports in Otolaryngology 2016 (2016): 1–4. http://dx.doi.org/10.1155/2016/8594074.

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Ameloblastic fibroodontoma (AFO) is a rare entity of mixed odontogenic tumors and frequently arises from posterior portion of the maxilla or mandible in first two decades of life. Herein, a 35-year-old woman with a noncontributory medical history who presented with a progressive left maxillary toothache, left maxillary first molar tooth mobility, and swelling in the left maxillary molar area for the last 2 months was reported. Radiologically, a tumor that originated from periapical area of the second mature molar teeth of maxilla was seen and additively unerupted tooth was not detected. The hi
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38

Felsypremila, Gnanasekaran, Thilla Sekar Vinothkumar, and Deivanayagam Kandaswamy. "Anatomic symmetry of root and root canal morphology of posterior teeth in Indian subpopulation using cone beam computed tomography: A retrospective study." European Journal of Dentistry 09, no. 04 (2015): 500–507. http://dx.doi.org/10.4103/1305-7456.172623.

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ABSTRACT Objective: To investigate the anatomic symmetry of maxillary and mandibular posteriors in Indian subpopulation using cone beam computed tomography (CBCT). Materials and Methods: CBCT images of 246 patients that had at least one noncarious, posterior tooth free of restorations in each quadrant were enrolled for retrospective analysis. A total of 3015 teeth (811 maxillary premolars, 845 mandibular premolars, 738 maxillary molars, and 621 mandibular molars) were analyzed for number of roots and root canals, canal morphology and anatomic symmetry, and concurrent types between the maxilla
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39

De Mendonça, Marcos Rogério, César Henrique Fukuji Fuziy, Mayra Fernanda Ferreira, and Alberto Carlos Botazzo Delbem. "Ectopic Eruption of the Maxillary Permanent First Molar: A Brief Review and Clinical Case Report." ARCHIVES OF HEALTH INVESTIGATION 12, no. 8 (2023): 1724–28. http://dx.doi.org/10.21270/archi.v12i8.6224.

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The Ectopic Eruption of the Maxillary Permanent First Molar (EEMPFM) is an eruption anomaly, characterized for the maxillary permanent first molar’s impaction in the distal surface of the deciduous second molar. The etiology is related with change of the axial axis of eruption of the permanent first molar associated with missing space in the maxilla. The diagnosis is the combination of clinical and complementary examination. There are two types of Ectopic Eruption: the reversible and the irreversible. The irreversible type requires orthodontics treatment, because it causes root resorption of t
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Pei, Jun, Jiyuan Liu, Yafei Chen, Yuanyuan Liu, Xuejuan Liao, and Jian Pan. "Relationship between maxillary posterior molar roots and the maxillary sinus floor: Cone-beam computed tomography analysis of a western Chinese population." Journal of International Medical Research 48, no. 6 (2020): 030006052092689. http://dx.doi.org/10.1177/0300060520926896.

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Objective This study aimed to assess the positional relationships between the maxillary sinus and the first and second molars in a western Chinese population by using cone-beam computed tomography. Methods This study included 212 patients (652 maxillary molars and 1956 roots). Patient demographics (sex and age) and cone-beam computed tomography data regarding the relationship between molar roots and the maxillary sinus were obtained. This relationship was stratified into four types for statistical analysis. Results Sex and side did not significantly influence the distance between maxillary mol
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Yi, Leah, Hyeran Helen Jeon, Chenshuang Li, Normand Boucher, and Chun-Hsi Chung. "Transverse Growth of the Maxillo-Mandibular Complex in Untreated Children: A Longitudinal Cone Beam Computed Tomography Study." Sensors 21, no. 19 (2021): 6378. http://dx.doi.org/10.3390/s21196378.

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The aim of this study is to evaluate the longitudinal transverse growth of the maxillo-mandibular complex in untreated children using the Cone Beam Computed Tomography (CBCT). Two sets of scans on 12 males (mean 8.75 years at T1 and 11.52 years at T2) and 18 females (mean 9.09 years at T1 and 10.80 years at T2) were analyzed using Dolphin 3D imaging. The transverse widths of various maxillary and mandibular skeletal landmarks and the dentoalveolar and dental landmarks at the level of first molars were measured. Overall, there were greater increases in the transverse dimension in the posterior
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Agnihotri, Gaurav, and Vimal Sikri. "Crown and Cusp Dimensions of the Maxillary First Molar: A Study of Sexual Dimorphism in Indian Jat Sikhs." Dental Anthropology Journal 23, no. 1 (2018): 1–6. http://dx.doi.org/10.26575/daj.v23i1.64.

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The human first maxillary molar provides clues about evolution and is functionally important. Crowns of maxillary molars have four main cusps, each having an independent growth pattern and different evolutionary background. The study aims to quantify the morphometric criterion for the maxillary first molar giving a special emphasis to sexual dimorphism. Measurements of the first maxillary molar were taken on 100 casts of Jat Sikh students (50 males, 50 females) studying in the local medical college in the age group of 17-21 years. The Jat Sikh community of Punjab is endogamous at the caste lev
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Gündüz, Kaan, Mehtap Muğlali, and Samet Inal. "Total Impaction of Deciduous Maxillary Molars: Two Case Reports." Journal of Contemporary Dental Practice 8, no. 6 (2007): 64–71. http://dx.doi.org/10.5005/jcdp-8-6-64.

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Abstract Aim The purpose of this report is to present two cases of totally impacted maxillary deciduous molars, considered a rarity in dental practice. Background Primary tooth impaction is quite rare during the development of primary dentition. Various factors contribute to the impaction of a deciduous tooth, including anklyosis, congenitally missing permanent teeth, defects in the periodontal membrane, trauma, injury of the periodontal ligament, precocious eruption of the first permanent molar, defective eruptive force, or a combination of these factors. Reports Case #1 An 18-year-old male p
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Kim, Suhae, Eungyung Lee, Soyoung Park, Taesung Jeong, and Jonghyun Shin. "Maxillo-mandibular Transverse Relationship of Primary Second Molar and Permanent First Molar of Children in Mixed Dentition: A Cone-Beam Computed Tomography Analysis." JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY 52, no. 1 (2025): 61–75. https://doi.org/10.5933/jkapd.2025.52.1.61.

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This study examined the transverse relationship between the maxilla and mandible in children with mixed dentition. The study focused on the primary second molar and the permanent first molar in relation to the anteroposterior skeletal patterns using cone-beam computed tomography (CBCT). A total of 102 patients from the Pediatric Dentistry Department at Pusan Dental Hospital were classified into three skeletal groups (Class I, Ⅱ, Ⅲ) based on the ANB angle (angle formed by A-point-nasion-B-point). CBCT scans were analyzed to assess the transverse dimensions of basal bone and dento-alveolar measu
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45

Khalid, Sana, Mubashir Sharif, Anis ur Rehman, Asifa Abbas, Wagma Ayub, and Naseem Azad. "Criteria for Classification of Inter-Radicular Septum Shape in Maxillary Molars with Clinical Importance for Immediate Implant Placemen." Pakistan Armed Forces Medical Journal 75, no. 2 (2025): 378–83. https://doi.org/10.51253/pafmj.v75i2.11832.

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Objective: To explore the use of Cone Beam Computed Tomography to evaluate morphometric properties of the Inter-Radicular Septum in maxillary first and second molar region. Study Design: Cross-sectional study. Place and Duration of Study: Armed Forces Institute of Dentistry, Combined Military Hospital, Rawalpindi Pakistan, from Jul to Dec 2023. Methodology: Cone Beam Computed Tomography scans of 177 patients, recruited via consecutive sampling technique were obtained and analyzed using NEWTOM software. Patients falling in the age range of 18-65 years, having first and second maxillary molars w
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Khosravifard, Negar, Zahra Dalili Kajan, and Homayoon Hasanpoor. "Cone beam computed tomographic survey of the mesiobuccal root canal anatomy in the maxillary first and second molar teeth of an Iranian population." European Journal of Dentistry 12, no. 03 (2018): 422–27. http://dx.doi.org/10.4103/ejd.ejd_60_18.

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ABSTRACT Objective: The objective of this study was to evaluate the mesiobuccal (MB) root canal(s) anatomy of the maxillary first and second molar teeth in an Iranian population. Materials and Methods: Cone beam computed tomography images of 280 teeth (145 maxillary first molars and 135 maxillary second molars) were analyzed to determine the number and types of the MB root canals. Chi-square test was used to examine the relationship between the number of MB canals and sex and Mann–Whitney analysis was used to define the relationship between the number of canals and the buccopalatal dimension o
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Suntana, Mutiara Sukma, Rudi Satria Darwis, Rena Izzatin Nissa, and Ratna Trisusanti. "Correlation of age to classification of vertical relationship of maxillary sinus and maxillary first molar root by cone-beam computed tomography: a cross-sectional study." Jurnal Radiologi Dentomaksilofasial Indonesia (JRDI) 8, no. 3 (2024): 97. https://doi.org/10.32793/jrdi.v8i3.1296.

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Objectives: The maxillary first molar has a close relationship with the base of the maxillary sinus floor. Cone-beam Computed Tomography (CBCT) provides coronal, sagittal, occlusal, and 3D sectional images of maxillofacial structures without causing distortion. Thus, CBCT allows for a comprehensive analysis of the position of the maxillary first molar about the maxillary sinus. This study aims to determine the correlation between age and the classification of vertical relationship between the maxillary sinus and the roots of the maxillary first molar using CBCT. Materials and Methods: The rese
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48

Estrela, Carlos, Keila SA Oliveira, Ana Helena G. Alencar, Fernando B. Barletta, Cyntia RA Estrela, and Wilson T. Felippe. "Oxygen Saturation in the Dental Pulp of Maxillary and Mandibular Molars - Part 2." Brazilian Dental Journal 28, no. 6 (2017): 704–9. http://dx.doi.org/10.1590/0103-6440201701447.

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Abstract This study determined the oxygen saturation (SaO2) in dental pulp of healthy maxillary and mandibular molars. Mean of SaO2 was evaluated in 112 maxillary and mandibular molars using pulse oximetry. Quantitative variables were described by mean and standard deviation. Variables with symmetric distribution were compared by Student t test and Mann-Whitney test. Pearson’s correlation coefficient was used to correlate quantitative variables. Analysis of variance was used to assess differences in SaO2 levels between the molar groups, followed by post-hoc Tukey. The significance level establ
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Lee, Dongyun, and Jisun Shin. "Generalized Pulp Stones of Primary Dentition in a Patient with Molar-Incisor Malformation : A Case Report." JOURNAL OF THE KOREAN ACADEMY OF PEDTATRIC DENTISTRY 47, no. 3 (2020): 337–43. http://dx.doi.org/10.5933/jkapd.2020.47.3.337.

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Molar-incisor malformation (MIM) is a new type of root anomaly reported recently. The characteristics of MIM are dysplastic root formations, constriction of pulp chambers and presence of calcified matrices at the level of cementoenamel junction in permanent first molars and primary second molars. In some cases, permanent maxillary incisors are also affected.The permanent first molars of the patient in this case report were affected with MIM. Generalized pulp stones were observed in overall primary dentition. Micro-computed tomography (micro-CT) imaging and scanning electron microscope-energy d
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Maharjan, Surendra, Anjana Rajbhandari, Resina Pradhan, Manju Bajracharya, and Bashu Dev Pant. "Assessment of Maxillary First Molars Rotation in Class II malocclusion cases: A Cross Sectional Study." Orthodontic Journal of Nepal 12, no. 2 (2022): 15–18. http://dx.doi.org/10.3126/ojn.v12i2.49771.

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Introduction: Determination of malocclusion including individual tooth malposition is crucial during diagnosis and treatment planning. Along with anteroposterior mal-relation, there is often the rotation of upper first molars in Class II cases. Rotated molars not only occupy more space than normally positioned molars but also increase the challenge for orthodontic treatment. Aims and objectives: This study aimed to determine the prevalence and extent of maxillary molar rotation in Class II division 1 and 2 malocclusion cases. Material and Methods: A total of 142 pretreatment maxillary casts of
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