ETIOLOGIC ASPECTS OF MANDIBULAR TOOTH AGENESIS - FOCUSING ON THE ROLEOF NERVE, ORAL-MUCOSA, AND SUPPORTING TISSUES

Citation
I. Kjaer et al., ETIOLOGIC ASPECTS OF MANDIBULAR TOOTH AGENESIS - FOCUSING ON THE ROLEOF NERVE, ORAL-MUCOSA, AND SUPPORTING TISSUES, European journal of orthodontics, 16(5), 1994, pp. 371-375
Citations number
17
Categorie Soggetti
Dentistry,Oral Surgery & Medicine
ISSN journal
01415387
Volume
16
Issue
5
Year of publication
1994
Pages
371 - 375
Database
ISI
SICI code
0141-5387(1994)16:5<371:EAOMTA>2.0.ZU;2-L
Abstract
The purpose of the present investigation was to consider possible aeti ological aspects of mandibular tooth agenesis by comparing the pattern of mandibular molar and premolar agenesis with radiological evidence of the mandibular canal.Orthopantomograms from 33 children affected by agenesis of at least four premolar and/or molar teeth in the mandible were investigated. Three children were affected by ectodermal dysplas ia. Two anthropological mandibles with absence of mandibular canals we re included in the study for comparison. According to the investigatio n, agenesis should be divided into three groups, based on an analysis of agenesis location, the presence of nerve canals in the jaws, and fi nally, data on possible bone, skin and oral mucosa abnormalities. The three aetiological groups suggested are: agenesis related to nerve tis sue, agenesis related to the oral epithelium, and agenesis related to the supporting tissue.