Dental anomalies: prevalence and associations between them in a large sample of non-orthodontic subjects, a cross-sectional study

• DOI: 10.1186/s12903-017-0352-y
• Publication Date: 2017-03-11T03:27:37Z
• Authors: G Laganà; N Venza; A Borzabadi-Farahani; F Fabi; C Danesi; P Cozza
• Keywords: Hypodontia; Cross-sectional study; Dental anomalies; Maxillary canine

To analyze the prevalence and associations between dental anomalies detectable on panoramic radiographs in a sample of non-orthodontic growing subjects.For this cross-sectional study, digital 5005 subjects were initially screened from single radiographic center Rome. Inclusion criteria were: who aged 8-12 years, Caucasian, had good diagnostic quality radiographs. Syndromic subjects, those with craniofacial malformation, or orthodontic patients excluded led to 4706 [mean (SD) age = 9.6 (1.2) 2366 males 2340 females]. Sample was subsequently divided into four subgroups (8, 9, 10, 11-12 year-old groups). Two operators examined observe presence common anomalies. The also investigated.The overall 20.9%. Approximately, 17.9% showed only one anomaly, 2.7% two anomalies, while 0.3% more than most frequent displacement maxillary canine (7.5%), hypodontia (7.1%), impacted teeth (3.9%), tooth ankylosis (2.8%), transposition (1.4%). lower right second premolar missing teeth; 3.7% agenesis, 0.08% six (Oligodontia). Mesiodens type supernumerary (0.66%). taurodontic (0.04%). Tooth transpositions seen 1.4 7.5%, retrospectively (approximately 69 58% 8 9 groups, retrospectively). Significant detected different (P < .05).The results our study revealed significant among provide further evidences support etiological factors.