کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
102508 161326 2011 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Age estimation from pulp/tooth area ratio (PTR) in an Indian sample: A preliminary comparison of three mandibular teeth used alone and in combination
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی ژنتیک
پیش نمایش صفحه اول مقاله
Age estimation from pulp/tooth area ratio (PTR) in an Indian sample: A preliminary comparison of three mandibular teeth used alone and in combination
چکیده انگلیسی

Pulp/tooth area ratio (PTR) method of adult dental age estimation has been examined on few tooth types. We assessed the lateral incisor (LI) and first premolar (PM1) in addition to canine (C) — alone and in combination. Periapical radiographs from 61 Indians aged 21–71 years were examined. PTR of LI produced the best age correlation (r = −0.395) followed closely by PM1 (r = −0.362). The canine revealed the lowest correlation (r = −0.206); among tooth combinations, the three teeth taken together had the best R value (−0.438) followed by LI + PM1 (−0.435), LI + C (−0.406) and C + PM1 (−0.37). The standard errors of estimates (S.E.E.) of the regression analyses for the individual teeth and tooth combinations ranged from ±12.13 to 13.08 years, indicating minimal difference in age estimates using solitary or multiple teeth. Errors were higher than in European groups (±2.5–5 years) which may partly owe to moderate age correlation of secondary dentine deposition in Indians. Moreover, facial soft-tissue superimposition in living subjects evaluated herein possibly precluded optimal tooth and pulp canal visualization. These indicate that the PTR method should be used judiciously in age estimation of living Indian adults, although further studies on larger samples with evenly distributed age-groups is necessary for deriving definitive conclusions.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Forensic and Legal Medicine - Volume 18, Issue 8, November 2011, Pages 350–354
نویسندگان
, , ,