scholarly journals The Relationship of the Inferior Dental Canal to the Roots of Impacted Mandibular Third Molars in Jordanian Population

2006 ◽  
Vol 7 (2) ◽  
pp. 71-78 ◽  
Author(s):  
Abdalla M. Hazza's ◽  
Zakarreya S.M. Albashaireh ◽  
Anwar B. Bataineh
Keyword(s):  
Third Molars ◽  
Jordanian Population ◽  
Impacted Mandibular Third Molars ◽  
Mandibular Third Molars ◽  
Root Apices ◽  
Relationship Of ◽  
The Relationship ◽  
True Relationship ◽  
Age And Sex ◽  
Inferior Dental Canal

Abstract Objective The aim of this study was to evaluate the topographic relationship between the inferior dental canals (IDCs) and the roots of impacted mandibular third molars. Methods Preoperative orthopantomograms (OPGs) were examined and the proximity of the IDC to the roots of impacted mandibular third molars was categorized into the following: groups: superimposition, adjacent, perforation, grooving, notching, or none. The categories notching, grooving, and perforation were regrouped together and called the true relationship between the IDC and the root apices. The type of impaction, age, and sex of the patient were also noted. Results The positional category of 96.1% of the radiographs with bilateral impactions was identical on both sides of the mandible. Out of 2526 impacted mandibular third molars examined, 1146 (45.3%) belonged to the superimposition category, 663 (26.2%) were adjacent, 312 (12.3%) showed grooving, 78 (3.08%) showed notching, and 9 (0.35%) were actually perforating the IDC. The results showed 15.7% of the total cases were in true relationship with the IDC. There was a significant association (p = 0.000) between patient's age and true relationship. Conclusions Identical positional relationship of the bilateral impacted third molars to the IDC was noted in 96.1% of the radiographs. The position of the IDC in relation to the roots of impacted third molars varied according to the patient's age. Citation Hazza'a AM, Albashaireh ZSM, Bataineh AB. The Relationship of the Inferior Dental Canal to the Roots of Impacted Mandibular Third Molars in a Jordanian Population. J Contemp Dent Pract 2006 May;(7)2:071-078.

scholarly journals Autotransplantation of Two Immature Third Molars with the Use of L-PRF

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Manon Rey Lescure ◽  
Nicola Alberto Valente ◽  
Sibylle Chatelain ◽  
Chiara Cinquini ◽  
Antonio Barone
Keyword(s):  
Treatment Option ◽  
Root Resorption ◽  
Third Molars ◽  
Impacted Tooth ◽  
Probing Depth ◽  
Successful Case ◽  
Impacted Mandibular Third Molars ◽  
Good Treatment Option ◽  
Mandibular Third Molars ◽  
Root Apices

Tooth autotransplantation is a procedure which provides the extraction of an erupted or impacted tooth and its repositioning to another site in the oral cavity. This Case Report describes a successful case of two autotransplantations of open-apex mandibular third molars in place of the hopeless first mandibular molars with the use of L-PRF in a growing patient. A 15-year-old male patient was referred to the Dental Clinic for the extractions of the two hopeless mandibular first molars. Autotransplantation was considered the best treatment option for both sites 36 and 46, because the presence of two impacted mandibular third molars (38 and 48) with an incomplete root formation. Teeth 36 and 46 were extracted and replaced with teeth 38 and 48. The patient had an uneventful healing. At follow-up visits, the two autotransplanted teeth showed physiologic mobility, absence of inflammation and discomfort, and absence of infection; probing depth values were within normal range, and the vitality tests were positive. After 2 years, the teeth in position 36 and 46 showed absence of infection and mobility, and positive pulp vitality tests and the radiographic examinations exhibited closure of the root apices as well as absence of any periapical radiolucency or root resorption. Tooth autotransplantation is a good treatment option in case of tooth loss offering an alternative to traditional or implant-supported prosthesis especially for growing patients.

scholarly journals Positive Predictive Value of Panoramic Radiography for Assessment of the Relationship of Impacted Mandibular Third Molars with the Mandibular Canal Based on Cone-Beam Computed Tomography: A Cross-Sectional Study

Diagnostics ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 1578
Author(s):  
Maryam Tofangchiha ◽  
Soheil Koushaei ◽  
Maryam Mortazavi ◽  
Zahra Souri ◽  
Ahad Alizadeh ◽  
...  
Keyword(s):  
Root Apex ◽  
Mandibular Canal ◽  
Cross Sectional Study ◽  
White Line ◽  
Cross Sectional ◽  
Panoramic Radiographs ◽  
Impacted Mandibular Third Molars ◽  
Mandibular Third Molars ◽  
Relationship Of ◽  
The Relationship

The aim of the present study was to assess the positive predictive value (PPV) of panoramic radiographic signs in the assessment of the relationship between impacted mandibular third molars (IMTMs) and the mandibular canal (MC). This cross-sectional study was conducted by reviewing 102 cone-beam computed tomography (CBCT) and panoramic radiographs of patients with IMTMs and radiographic signs of the contact of the IMTMs with the MC on panoramic radiographs (i.e., root apex darkening and interference with the white line). A positive relationship of the IMTM roots with the MC based on CBCT findings was recorded as the gold standard. The PPV of panoramic radiographic signs was calculated for the detection of the relationship of the IMTM root with the MC. The IMTMs were in contact with the MC on CBCT scans in 90.1% of the cases. The PPV of root apex darkening and the interference with the white line was found to be 89.09% (95% CI: (77.75, 95.88)) and 91.48% (95% CI: (79.62, 97.63)), respectively. The MC had a buccal position in 63.7%, and a lingual position in 35.2%, of the cases. The contact of IMTMs with the MC was more commonly seen in patients with a lingual position (100% of the samples). The IMTM root apex darkening and interference with the white line of the MC on panoramic radiographs had a high PPV for determination of the contact of IMTMs with the MC. Thus, presence of the above-mentioned risk factors indicates the need for subsequent 3D radiographic assessments.

scholarly journals Accuracy of Panoramic Radiograph in Assessment of the Relationship Between Mandibular Canal and Impacted Third Molars

2016 ◽  
Vol 10 (1) ◽  
pp. 322-329 ◽  
Author(s):  
Weeraya Tantanapornkul ◽  
Darika Mavin ◽  
Jaruthai Prapaiphittayakun ◽  
Natnicha Phipatboonyarat ◽  
Wanchanok Julphantong
Keyword(s):  
Direct Contact ◽  
Digital Images ◽  
Third Molar ◽  
Mandibular Canal ◽  
Diagnostic Tools ◽  
Canal Wall ◽  
Third Molars ◽  
Impacted Mandibular Third Molars ◽  
Mandibular Third Molars ◽  
The Relationship

Background: The relationship between impacted mandibular third molar and mandibular canal is important for removal of this tooth. Panoramic radiography is one of the commonly used diagnostic tools for evaluating the relationship of these two structures. Objectives: To evaluate the accuracy of panoramic radiographic findings in predicting direct contact between mandibular canal and impacted third molars on 3D digital images, and to define panoramic criterion in predicting direct contact between the two structures. Methods: Two observers examined panoramic radiographs of 178 patients (256 impacted mandibular third molars). Panoramic findings of interruption of mandibular canal wall, isolated or with darkening of third molar root, diversion of mandibular canal and narrowing of third molar root were evaluated for 3D digital radiography. Direct contact between mandibular canal and impacted third molars on 3D digital images was then correlated with panoramic findings. Panoramic criterion was also defined in predicting direct contact between the two structures. Results: Panoramic findings of interruption of mandibular canal wall, isolated or with darkening of third molar root were statistically significantly correlated with direct contact between mandibular canal and impacted third molars on 3D digital images (p < 0.005), and were defined as panoramic criteria in predicting direct contact between the two structures. Conclusion: Interruption of mandibular canal wall, isolated or with darkening of third molar root observed on panoramic radiographs were effective in predicting direct contact between mandibular canal and impacted third molars on 3D digital images. Panoramic radiography is one of the efficient diagnostic tools for pre-operative assessment of impacted mandibular third molars.

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