Assessment of age of majority by measurement of open apices of the third molars using Cameriere′s third molar maturity index

Abstract Objectives The aim was to evaluate the characteristics of the mandibular third molars, especially in relation to the inferior alveolar nerve. Further aims were to investigate incidental findings in panoramic radiographs in an adult population, and to investigate image quality related to patient positioning. Materials and Methods From a previous study with 451 randomly selected adult participants who lived in Sweden, 442 panoramic radiographs from four dental public health clinics were used. The third molars’ characteristics and relation to inferior alveolar nerve were evaluated. Incidental findings and patient positioning were recorded. Statistical Analysis Frequency analysis was used to investigate the occurrence of all findings and their possible interconnections. Whether the patients’ age or gender had an impact or not was also analyzed. Results The third molars were erupted in vertical position among 73% regardless of age. When retained or semi-retained, they were most commonly in mesioangular positions. The inferior alveolar nerve was located inferior to the roots in 52%, whereas an overlapped position was most common if the third molar was retained (90%), semi-retained (83%) or the age was less than 30 years (66%). Common incidental findings were apical radiolucencies, idiopathic osteosclerosis, and tooth fragments. Suboptimal patient positioning was found in one-third of the radiographs. Conclusions Panoramic radiography is a useful method to evaluate third molar prior to surgical removal and may be the only image required. Most incidental findings on panoramic radiographs does not seem to require any further odontological management.

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Evaluation of Hemodynamic Cerebral Disordersin Patients Subjected to the Third Molar Extraction.Evaluation of the Effectiveness of OsteopathicRehabilitation after Tooth Extraction

Russian Osteopathic Journal ◽

10.32885/2220-0975-2016-1-2-60-66 ◽

2016 ◽

pp. 60-66

Author(s):

А. . Atyakshev ◽

N. . Tekoutieva

Keyword(s):

Tooth Extraction ◽

Third Molar ◽

Cerebral Hemodynamics ◽

Third Molars ◽

The Third ◽

Upper Jaw ◽

Rehabilitation Measures

Extraction of the third molars from the upper jaw can cause somatic dysfunctions and changes in cerebral hemodynamics in patients. Rehabilitation measures aimed to correct somatic dysfunctions and restore cerebral hemodynamics are necessary for these patients.

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

European Journal of Dentistry ◽

10.4103/1305-7456.195168 ◽

2016 ◽

Vol 10 (04) ◽

pp. 454-458 ◽

Cited By ~ 3

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.

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The Oblique Lateral Jaw Radiograph

British Journal of Orthodontics ◽

10.1179/bjo.1.4.139 ◽

1974 ◽

Vol 1 (4) ◽

pp. 139-142

Author(s):

C. P. Adams

Keyword(s):

Present Article ◽

Third Molar ◽

Third Molars ◽

X Ray ◽

The Third ◽

Molar Teeth ◽

Relationship Of ◽

The Relationship ◽

Film Area

The Oblique Lateral Jaw Radiograph has been used as a routine diagnostic x-ray view for many years as an aid to orthodontic diagnosis and for the assessment of the positions of unerupted third molar teeth. Many methods for obtaining clear undistorted views of the teeth have been suggested from a freehand setting up of film, patient and x-ray tube, to the use of simple orientated devices. The present article describes a method of standardizing the relationship of film and x-ray tube to one another so that it is only necessary for the radiographer thereafter to place the patient on the film area in a manner depending on whether a view. is required of the third molars only or of the complete upper and lower buccal segments.

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