scholarly journals Rare Morphology of The Third Maxillary Molar and Potential Complications in its Extraction

2020 ◽  
Vol 27 ◽  
pp. 66-68
Author(s):  
Siti Mazlipah Ismail ◽  
Firdaus Hariri
Keyword(s):  
Female Patient ◽  
Morphological Variation ◽  
Root Morphology ◽  
Third Molar ◽  
Rare Variation ◽  
The Third ◽  
Maxillary Third Molar ◽  
Maxillary Molar ◽  
Potential Complex

There is a wide variation in the morphology of third maxillary molar which can be difficult to be identified radiographically. We present a case of a 26 year-old Yemeni female patient presented with difficult extraction of her left maxillary third molar. The extracted tooth showed a rare variation of root morphology, having four roots with three roots curving palatally at the apices. This report emphasized the potential complex morphological variation of maxillary third molar which may lead to the difficulty of a routine straight forward procedure thus needing careful extraction maneuvering to prevent any complications.

scholarly journals Accuracy of cone-beam computed tomography in defining spatial relationships between third molar roots and inferior alveolar nerve

2016 ◽  
Vol 10 (04) ◽  
pp. 454-458 ◽  
Author(s):  
Roberto Pippi ◽  
Marcello Santoro ◽  
Ferdinando D'Ambrosio
Keyword(s):  
Computed Tomography ◽  
Cone Beam Computed Tomography ◽  
Root Morphology ◽  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Root Surface ◽  
Cone Beam ◽  
Spatial Relationships ◽  
Third Molars ◽  
The Third

ABSTRACT Objective: Cone-beam computed tomography (CBCT) has been proposed in surgical planning of lower third molar extraction. The aim of the present study was to assess the reliability of CBCT in defining third molar root morphology and its spatial relationships with the inferior alveolar nerve (IAN). Materials and Methods: Intraoperative and radiographic variables of 74 lower third molars were retrospectively analyzed. Intraoperative variables included IAN exposure, number of roots, root morphology of extracted third molars, and presence/absence of IAN impression on the root surface. Radiographic variables included presence/absence of the cortex separating IAN from the third molar roots on CBCT examination, number of roots and root morphology on both orthopantomography (OPG) and CBCT. The statistical association between variables was evaluated using the Fisher's exact test. Results: In all cases of intraoperative IAN exposure, the cortex appeared discontinuous on CBCT images. All cases, in which the cortical bone was continuous on CBCT images, showed no association with nerve exposure. In all cases in which nerve impression was identified on the root surface, the IAN cortex showed interruptions on CBCT images. No nerve impression was identified in any of the cases, in which the cortex appeared continuous on CBCT images. CBCT also highlighted accessory roots and apical anomalies/curvatures, not visible on the OPG. Conclusions: CBCT seems to provide reliable and accurate information about the third molar root morphology and its relationship with the IAN.

scholarly journals Gambaran radiografi impaksi ektopik molar tiga disertai kista dentigerous dalam sinus maksilaris pada radiograf CBCT 3D

2019 ◽  
Vol 3 (2) ◽  
pp. 11
Author(s):  
Nova Rosdiana ◽  
Farina Pramanik
Keyword(s):  
Case Report ◽  
Physical Examination ◽  
Maxillary Sinus ◽  
Female Patient ◽  
Third Molar ◽  
Panoramic Radiograph ◽  
Maxillary Third Molar

Objectives: The aim of this case report is to explain further about radiograph on impacted right maxillary third molar and canine using CBCT 3D. Case Report: A 18 year old female patient came with swelling on her upper right posterior gum. The condition was associated with pus contained in the gum. Physical examination revealed no exact abnormalities condition on her teeth. Panoramic radiograph examination showed radiopaque image surrounded by radiointermediate image in maxillary sinus. The result of 3D CBCT radiograph exhibited radioopaque image resembling tooth 18 surrounded by unilocular radiointermediate filling 2/3 maxillary sinus with well-defined border.  Conclusion: CBCT is a supported examination which may help in establishing diagnosis more accurately.  

scholarly journals Early replacement of ankylosed first molar via mesial root movement facilitates bone formation and normal eruption of the third molar

2021 ◽  
Author(s):  
Sun-Hyung Park ◽  
Yun-Jin Koo ◽  
Byeong-Tak Keum ◽  
Joo-Hee Chun ◽  
Kee-Joon Lee
Keyword(s):  
Bone Defect ◽  
Tooth Movement ◽  
Third Molar ◽  
Active Growth ◽  
Second Molar ◽  
Treatment Timing ◽  
The Third ◽  
End Of Treatment ◽  
Maxillary Molar ◽  
Root Movement

ABSTRACT Ankylosis of a molar during active growth leads to a significant vertical bone defect, extrusion of the opposing molar, and inclination of adjacent teeth. Treatment timing is an essential factor for the patient's quality of life. Early extraction of the ankylosed molar and protraction of the second molar is challenging because of the difficulty of tooth movement and the uncertainty of the normal eruption of the third molar. In view of the uncertainty of eruption of the mandibular third molar, it is essential to assess the potential for eruption according to the developmental stage of the third molar and to secure sufficient space for eruption. In this case report, a girl with an ankylosed right mandibular first molar and an advanced vertical bone defect was treated via early extraction of the ankylosed molar along with the intrusion of the maxillary molar and mesial root movement of the second molar before the initiation of third molar root formation. Restoration of the vertical bone defect was noted at the end of treatment. In addition, spontaneous eruption of the third molar was observed, which was in contrast to the mesioangular impaction of the contralateral third molar. This case emphasizes the importance of treatment timing to increase the chance of utilization of the third molar.

scholarly journals Impacted Maxillary Third Molar: Report of Two Cases

2017 ◽  
Vol 6 (1) ◽  
pp. 1430
Author(s):  
Tsvetan Borisov Tsvetanov ◽  
Nicola Stamenov
Keyword(s):  
Case Report ◽  
High Risk ◽  
Maxillary Sinus ◽  
Postoperative Period ◽  
Third Molar ◽  
Third Molars ◽  
The Third ◽  
Bone Removal ◽  
Maxillary Third Molar ◽  
Surgical Extraction

The aim of this case report was to review two cases of patients with impacted maxillary third molars. Both were symptomatic and presence of pathology clinically and radiographically. Surgical extraction of these third molars with accessible positions requires a bone removal. Moreover, it contains a high risk of displacement of the third molars into the maxillary sinus. The postoperative period for both cases was without complications.

scholarly journals A radiographic evaluation of impacted third molar teeth of patients in the South-east of Turkey: a retrospective study

2019 ◽  
Vol 9 (3) ◽  
pp. 127-132
Author(s):  
Mehmet ÇOLAK
Keyword(s):  
Retrospective Study ◽  
Third Molar ◽  
Radiographic Evaluation ◽  
Vertical Position ◽  
The South ◽  
Negative Effects ◽  
The Third ◽  
Impacted Third Molar ◽  
Maxillary Third Molar ◽  
Molar Teeth

Aim: The aim of this study was to retrospectively evaluate the radiographs of the region of the third molar teeth in adults who presented with various complaints. The impaction status of these teeth was examined according to the positions shown, gender and the jaw. Methodology: A retrospective evaluation was made of the panoramic radiographs of a total of 664 patients, comprising 341 males and 323 females with a mean age of 23.96 years (range, 17-35 years). The impaction status and position were examined in a total of 1331 third molar teeth; 456 maxillary and 875 mandibular. Results: Of the 875 mandibular third molar teeth, 545 were seen to be in a vertical position, 234 were mesioangular, 54 distoangular, 32 horizontal and 10 buccoangular. Of the 456 maxillary third molar teeth, 322 were seen to be in a vertical position, 71 were mesioangular, 47 distoangular, 5 horizontal and 11 buccoangular. In the examination of the impaction status of the third molar teeth, there was seen to be more impaction of teeth in the mandible than in the maxilla. The most frequent impaction position of maxillary third molar teeth was vertical (70.61%) followed by mesioangular (15.57%), and in mandibular teeth, the most frequent impaction position was vertical (62.28%) followed by mesioangular (26.74%). Conclusions: In conclusion, it can be said that when third molar teeth are impacted which may cause pathologies, the negative effects of these must be taken into consideration.   How to cite this article: Çolak M. A Radiographic Evaluation of Impacted Third Molar Teeth of Patients in the South-east of Turkey: A retrospective study. Int Dent Res 2019;9(3):127-32.   Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

scholarly journals Assessment of Maxillary Third Molar Status Before and After Orthodontic Treatment in Adolescent Patients

2020 ◽  
Vol 70 (12) ◽  
pp. 4381-4386
Keyword(s):  
Orthodontic Treatment ◽  
Third Molar ◽  
Occlusal Plane ◽  
Maxillary Molars ◽  
Maxillary Third Molar ◽  
Before And After ◽  
Maxillary Molar ◽  
Angular Measurements ◽  
Upper Third ◽  
Upper Molar

Third maxillary molar prediction for impaction and eruption should be part of the orthodontic treatment planning. In our study we evaluated the reliability of some linear and angular measurements used for the assessment of maxillary third molar status by comparing them before and after orthodontic treatment. 208 upper third molars were analyzed, 148 at patients who undergone non extraction orthodontic treatment and 60 at patients where first premolar extractions were performed.We analyzed on orthopantomograms taken at the beginning and at the end of the orthodontic the ratio between the dimension of the retromolar space and the mesio distal diameter of the third molar, the angle between the long axis of third molar and the occlusal plane and the angle between the long axis of the second and third maxillary molars. We found significant changes in retromolar space dimension after orthodontic treatment with premolars removal and slight average increase in the non extraction group. We didn’t find significant statistical differences before and after orthodontic treatment neither between the angulations of the maxillary third molar with the occlusal plane, nor with the second upper molar (p>0.05) in both groups. The conclusion is that the type of orthodontic treatment has little or no influence upon third molar angulation and this parameter can be used as a predictive factor for third molar status from the beginning of the orthodontic treatment. Keywords: third maxillary molar; retromolar space; angulation

scholarly journals Variant root morphology of third mandibular molar in normal and impacted teeth

2017 ◽  
Vol 6 (3) ◽  
pp. 1052-1061
Author(s):  
Isaac Kipyator Bokindo ◽  
Fawzia Butt ◽  
Francis Macigo
Keyword(s):  
Root Morphology ◽  
Inferior Alveolar Nerve ◽  
Third Molar ◽  
Mandibular Canal ◽  
Impacted Teeth ◽  
The Third ◽  
Mandibular Third Molar ◽  
Mandibular Molar ◽  
Panoramic Views

The mandibular third molar poses a challenge to dental surgeons due to it’s unpredictable morphology which leads to increased difficulty during its extraction. The root morphology of the third molar is considered to be the most variable in the human dentition. The study aims to document these variations which will be useful while undertaking procedures on the third molar. Three hundred and fifty nine panoramic views of the mandible were obtained from the Radiology division for patients seeking treatment in the School of Dental Sciences since 2010. The prevalence of third molar impaction was found to be 27%, with mesioangular being the commonest at 21.9% using the Winter’s classification. Dilacerations of roots was recorded at 44%, with a ratio of normal to dilacerated of 1:1 seen in impacted teeth while, non impacted teeth had a ratio of 1.3:1. Most teeth had 2 roots (85.5%), with one root seen in 12.1%. Partially fused roots was also observed in 2.4% of cases with only one case showing three roots. The total mean distance from the tips of roots to the mandibular canal was -0.5mm. Higher negative means of -1.5mm was recorded in impacted teeth than in normal teeth (-0.2mm). Teeth with dilacerated roots also showed closer proximity to mandibular canal than straight rooted teeth. The left side of the jaw also showed higher negative means. Present findings suggest that careful considerations should be made on impacted teeth. In addition to the type of impaction, proximity to the inferior alveolar nerve (IAN), number of roots and shape of the roots should be assessed. Similar considerations should also be made to non impacted teeth due to the high unpredictability observed in root morphology.Keywords: Third molar, root morphology, impaction

The Importance of Abutment Teeth Preparation Guide for Telescopic Double Crown Restorations with Friction Element

DENTA ◽  
2017 ◽  
Vol 11 (1) ◽  
pp. 69
Author(s):  
Anindita Apsari ◽  
Chaterina Dyah Nanik K
Keyword(s):  
Case Management ◽  
Female Patient ◽  
Alternative Treatment ◽  
Speech Disorders ◽  
Friction Element ◽  
The Third ◽  
Double Crown ◽  
Abutment Teeth ◽  
Tooth Preparation ◽  
Crown Preparation

<p><strong><em>Background: </em></strong><em>Telescopic double crown restoration can be used as an alternative treatment if the patient wants the tooth to be maintained as long as the supporting tooth has a healthy periodontal. In dental preparation telescopic double crown support requires a preparation guide so that the preparation can be acurate. Minimal preparation can cause the results of the telescopic double crown restoration to be overcontoured, so that the patient may occur uncomfortable, speech disorders and esthetic is not good. <strong>Objective:</strong> to provide information about the importance teeth preparation guidelines for prosthodontic treatment with telescopic double crown restorations. <strong>Case: </strong>A 72-year-old female patient, coming to the dentist wants to make dentures so that she can chew food well and improve her appearance. The remaining teeth are only 13 and 23. In making the denture, the patient wants the teeth to be retained (not removed) and the denture is aesthetically good. <strong>Case Management: </strong>Make a diagnostic wax-up on a semiadjustable articulator to estimate the results of restoration, </em><em>mould</em><em> </em><em>the patient's teeth before starting the preparation with three times putty for the preparation guide and making a temporary crown. the first putty mold is cut mesial-distal right in the middle of the incical teeth, the second putty mould is cut in the labial-palatal direction right in the middle of the tooth mould, the third putty mould is fixed on the stock tray to make the temporary crown. Preparation of teeth 13 and 23 with regard to the putty cut preparation guide, then moulding the maxilla and mandibula with double impressions using an individual tray, after that make the temporary crown directly with the third putty mould. <strong>Conclusion: </strong>The preparation guide of teeth is very necessary so that the making of telescopic double crown restorations is not overcontoured, so that esthetic and retention can be achieved which are good and do not cause speech disorders.</em></p><p><strong><em>Keywords:</em></strong><em> Telescopic double crown, tooth preparation guide, esthetic</em></p><p><strong><em>Correspondence:</em></strong><em> Anindita Apsari. Prostodonsia, Fakultas Kedokteran Gigi, Universitas Hang Tuah, Arief Rahman Hakim 150, Surabaya, Telepon 031-</em><em>5945864, </em><em>5912191, </em><em>E</em><em>mail: <span style="text-decoration: underline;">[email protected]</span></em></p>

Dental Inclusion of Canine and Wisdom Tooth in Orthodontics Chemical Necroses

2018 ◽  
Vol 69 (8) ◽  
pp. 2191-2196
Author(s):  
Cristian Constantin Budacu ◽  
Nicoleta Ioanid ◽  
Cristian Romanec ◽  
Mihail Balan ◽  
Liliana Lacramioara Pavel ◽  
...  
Keyword(s):  
Third Molar ◽  
Point Of View ◽  
Separate Entity ◽  
Wisdom Tooth ◽  
Facial Aesthetics ◽  
The Third ◽  
Edentulous Mandible ◽  
Canine Guidance ◽  
Upper Jaw ◽  
Functional Point

Canine plays an important role in the dento-maxillary system. From a functional point of view, it provides the canine guidance, by positioning it in the frontal area, has a role in facial aesthetics. It plays an important prosthetic role by having the longest root and one of the longest arcade teeth. Three molars represent the last teeth that erupt in the arches both in the jaw and in the mandible, which is why they remain the most frequently included.Canine incidence is quite common following the wisdom tooth. It can be unilateral or bilateral and is more common in the upper jaw. The canine may remain included at the vestibular, palatal or between the two bones. A separate entity is the incision of the canine in the edentulous mandible or jaw. The study included 213 cases with dento-alveolar pathology, of which 128 patients were selected with dental inclusion. Our study reports that the first three molars are frequent, followed by the canine as opposed to other studies conducted by Guzduz K in 2011 and Fardi A of the same year bringing the canines first (Fardi, Guzduz). Some studies attribute the first place to the superior canine in terms of frequency, but they are abstracted from the molar three inclusion that they consider as most frequently (Compoy). The most common tooth in inclusion is the third molar (lower and upper) followed by the upper canine; the most commonly affected are women for both canine and molar.

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