COMPARISON BETWEEN TWO DEVELOPMENTAL STAGING METHODS OF THIRD MOLARS (DEMIRJIAN VERSUS ENGSTROM) AND THEIR CORRELATION WITH CHRONOLOGICAL AGE

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BASIRI N.; AKHLAGHI M.; GHIAEI M.R.; TAVAKOULI M.A.

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Journal: Journal of Dental School Year:2007 | Volume:25 | Issue:1 (71) Page(s): 26-33

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Title

COMPARISON BETWEEN TWO DEVELOPMENTAL STAGING METHODS OF THIRD MOLARS (DEMIRJIAN VERSUS ENGSTROM) AND THEIR CORRELATION WITH CHRONOLOGICAL AGE

Author(s)

BASIRI N. | AKHLAGHI M. | GHIAEI M.R. | TAVAKOULI M.A. | Issue Writer Certificate

Keywords

CHRONOLOGICAL AGEQ3

THIRD MOLARQ3

PANORAMIC RADIOGRAPHYQ2

Abstract

Background & Aim: Determining CHRONOLOGICAL AGE of individuals is an investigation key in legal medicine, to recognize the age of those without the date of birth or of those who have problems in birth registration and also the age of criminals under or above 18. The aim of this study was to compare between two developmental staging methods of THIRD MOLARs (Demirjian vs. Engstrom) and their correlation with CHRONOLOGICAL AGE of population. Methods & Materials: This cross-sectional and diagnostic study was accomplished in department of radiology, faculty of dentistry, university of Shaheed Beheshti in Tehran (2004-2005). Samples were composed of 350 young adults, 15-25 year-old, attending department of radiology. The radiographs were studied by a legal medicine resident and an oral and maxillofacial radiologist in order to determine developmental stages of THIRD MOLARs according to two methods of Demirjian and Engstrom. Statistical calculations were carried out by Levene, T, Wilcoxon's signed rank, Mannwhitney, Friedman tests and Kendal correlation coefficients (tau-b). Results: The frequency of different developmental stages of Demirjian and Engstrom methods was increased by development of THIRD MOLARs. In Demirjian method there is only a significant statistical difference between males and females in case of the left mandibular THIRD MOLAR, in a way that males were in a higher developmental rank. In Engstrom method, in case of the right and left mandibular THIRD MOLARs, the males were in a higher developmental rank, and in maxillary THIRD MOLARs there were no difference between males and females. According to Calton system about correlational coefficients, the relation between Demirjian method and age was average in maxillary THIRD MOLARs, and was strong in mandibular THIRD MOLARs. These results were similar to the results of Engstrom method but correlational coefficients in case of each tooth, were lower in Engstrom method in comparison to Demirjian.Conclusion: In order to determine the CHRONOLOGICAL AGE, Demirjian method was better than Engstrom.

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APA: Copy

BASIRI, N., AKHLAGHI, M., GHIAEI, M.R., & TAVAKOULI, M.A.. (2007). COMPARISON BETWEEN TWO DEVELOPMENTAL STAGING METHODS OF THIRD MOLARS (DEMIRJIAN VERSUS ENGSTROM) AND THEIR CORRELATION WITH CHRONOLOGICAL AGE. JOURNAL OF DENTAL SCHOOL SHAHID BEHESHTI UNIVERSITY OF MEDICAL SCIENCE, 25(1 (71)), 26-33. SID. https://sid.ir/paper/22322/en

Vancouver: Copy

BASIRI N., AKHLAGHI M., GHIAEI M.R., TAVAKOULI M.A.. COMPARISON BETWEEN TWO DEVELOPMENTAL STAGING METHODS OF THIRD MOLARS (DEMIRJIAN VERSUS ENGSTROM) AND THEIR CORRELATION WITH CHRONOLOGICAL AGE. JOURNAL OF DENTAL SCHOOL SHAHID BEHESHTI UNIVERSITY OF MEDICAL SCIENCE[Internet]. 2007;25(1 (71)):26-33. Available from: https://sid.ir/paper/22322/en

IEEE: Copy

N. BASIRI, M. AKHLAGHI, M.R. GHIAEI, and M.A. TAVAKOULI, “COMPARISON BETWEEN TWO DEVELOPMENTAL STAGING METHODS OF THIRD MOLARS (DEMIRJIAN VERSUS ENGSTROM) AND THEIR CORRELATION WITH CHRONOLOGICAL AGE,” JOURNAL OF DENTAL SCHOOL SHAHID BEHESHTI UNIVERSITY OF MEDICAL SCIENCE, vol. 25, no. 1 (71), pp. 26–33, 2007, [Online]. Available: https://sid.ir/paper/22322/en

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