نتایج جستجو برای: age determination by teeth

تعداد نتایج: 7530964  

ژورنال: مجله دندانپزشکی 2006
حیدری, علیرضا , سراج, بهمن , شهرابی, مهدی ,

Background and Aim: Radiography is the most commonly used technique in root canal length determination, but its application in pedodontics is difficult due to many problems such as radiation hazards, superimposition of permanent teeth buds and uncooperative children. The aim of this study was to investigate the accuracy of an electronic apex locator (Dentaport ZX) in measuring the root canal le...

Journal: :Applied sciences 2022

Oral diseases are the most prevalent chronic childhood diseases, presenting as a major public health issue affecting children of all ages in developing and developed countries. Early detection control these is very crucial for child’s oral general wellbeing. The aim this systematic review to assess performance artificial intelligence models designed application pediatric dentistry. A search lit...

2017
Jozo Badrov Tomislav Lauc Enita Nakaš Ivan Galić

Objective. To compare the development of permanent teeth in a group of children with the congenitally missing permanent teeth (CMPT) and corresponding nonaffected group. Methods. The formation stages of all developing permanent teeth were determined on 345 panoramic radiographs (OPTs) by the method of Haavikko (1970), and dental age was calculated. The paired samples t-test was used to compare ...

2015
Kewal Krishan Tanuj Kanchan Arun K Garg

Forensic odontology is primarily concerned with the use of teeth and oral structures for identification in a legal context. Various forensic odontology techniques help in the identification of the human remains in incidents such as terrorists' attacks, airplane, train and road accidents, fires, mass murders, and natural disasters such as tsunamis, earth quakes and floods, etc. (Disaster Victim ...

Journal: :Applied sciences 2023

The purpose of this study was to determine tissue concentration toxic metals, namely Mn, Cr, Ni, Cu, Fe, Cd, Pb, and Zn, in the removed third molars patients from Legnica-Głogów copper district. A group 69 with an average age 27.3 ± 6.9 years enrolled into study. There were 16 (23.2%) men 53 (76.8%) women. Patients divided two groups according place residence—residents Copper Area (n = 49) cont...

Journal: :Journal of epidemiology 2006
Jun Aida Yuichi Ando Rahena Akhter Hitoshi Aoyama Mineo Masui Manabu Morita

BACKGROUND There has been no nationwide study in Japan on reasons for extraction of permanent teeth. This survey was aimed to determine the reasons for extraction of permanent teeth in Japan. METHODS Five thousand, one hudred and thirty-one dentists were selected by systematic selection from the 2004 membership directory of the Japan Dental Association. The dentists selected were asked to rec...

Journal: :Coatings 2021

Roller cone drill bits are used in drilling larger diameter wells. The efficiency of the roller bit depends on wear rate materials that forms teeth, which crushes rock at bottom well. To prevent excessive wear, research has largely focused study and determination abrasion-resistant materials. In our work, we investigated mechanism a whose wear-resistant teeth protected by hard metal coating wel...

2013
Sujitha George Rohan Rai Nillan Shetty Niveditha Shetty

Introduction: Determination of the actual level of genetic determinance of occlusal variation could have a significant effect on prognosis and treatment planning. Aim: The objective of this study was to evaluate the hereditary variations occurring among the members within monozygotic and dizygotic twin pairs based on widest mesiodistal measurements in relation to the posterior permanent dentiti...

Background and purpose: Lead is a heavy metal, which has been replaced by calcium hydroxyapatite in tooth enamel. It is considered as an index of pollution assessment. Zanjan province is potential area for lead element accumulation. This study aimed at comparing the amount of lead in human deciduous and permanent teeth in order to evaluate and determine the risk of lead pollution in urban and r...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1390

in the new age, in regard to human success in education in the globalizing world, one can consider english proficiency and individual differences as two important issues. in efl settings, reading skill plays an important role in education. it seems that using multiple intelligences theory in efl classes which values individual differences by tapping different intelligences, can be rewarding. as...

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