نتایج جستجو برای: molar first

تعداد نتایج: 1466623  

ژورنال: طلوع بهداشت یزد 2012
حائریان اردکانی, احمد , حسینی ابریشمی, مونا , رشیدی میبدی , فهیمه , سلیمانی, علی اصغر, غلامی, ندا ,

  Background: The first permanent molar is the biggest permanent tooth having the most important role in chewing, preservation of vertical height of the jaws and esthetics. On the other hand, because of it's special anatomic form, early eruption, lack of mother’s awareness about it’s eruption and misidentifying it from primary teeth, this tooth is very susceptible to caries. Its caries is an in...

Journal: :Journal of strength and conditioning research 2014
Kevin Till Ben Jones Stacey Emmonds Emma Tester Jack Fahey Carlton Cooke

Professional rugby league clubs implement training programmes for the development of anthropometric and physical characteristics within an academy programme. However, research that examines seasonal changes in these characteristics is limited. The purpose of the study was to evaluate the seasonal changes in anthropometric and physical characteristics of academy rugby league players by age categ...

Journal: :East African medical journal 2012
N J Muriithi S W Maina J Okoth L W Gathece

OBJECTIVE To determine the internal root morphology and gender variations in mandibular first permanent molars in a Kenyan population. DESIGN In vitro descriptive cross sectional study. SETTING School of Dental Sciences, University of Nairobi RESULTS The mesial root of mandibular first molars had two canals in 96.3% of the teeth in both males and females and-type IV canal configuration wa...

Journal: :Australian orthodontic journal 2008
Ana Cláudia Moreira Melo Mario Eduardo Jawonski Lucila Zimmermann Largura Geninho Thomé José Renato de Souza Marcos André Duarte da Silva

BACKGROUND Overeruption of an upper molar following loss of the opposing tooth is a common clinical finding. Rehabilitation can be difficult when the interocclusal space is reduced. AIM To intrude an overerupted upper first molar and replace the missing lower first molar. METHODS Buccal and palatal microscrews and a transpalatal bar were placed. The palatal miniscrew loosened shortly after ...

2016
Christos Livas Demetrios J. Halazonetis Johan W. Booij Christos Katsaros Yijin Ren

BACKGROUND The objective of this study was to investigate whether multistranded fixed retainers prevented overeruption of unopposed mandibular second molars in maxillary first molar extraction cases. METHODS The panoramic radiographs of 65 Class II Division 1 Caucasian Whites (28 females, 37 males) consecutively treated with bilateral maxillary first molar extraction and the Begg technique, a...

2016
Khaled Khalaf

OBJECTIVES To compare tooth size between subjects with mild, moderate and severe hypodontia and a control group. MATERIAL AND METHODS The study comprised 120 patients with hypodontia divided into three groups of 40 mild (≤2 teeth congenitally missing), 40 moderate (3-5 teeth congenitally missing) and 40 severe (≥6 teeth congenitally missing) hypodontia; and 40 age and sex matched controls. To...

Journal: :The journal of contemporary dental practice 2004
Kyung san Min

A right mandibular first molar requiring root canal treatment was found to have three separate mesial canals. This case demonstrates an extraordinary anatomical configuration and supplements previous reports of the existence of such configurations in mandibular first molars.

Journal: :Brazilian oral research 2004
Hélio Ferraz Porciúncula Mariana Machado da Porciúncula Elizangela Partata Zuza Benedicto Egbert Corrêa de Toledo

A high rate of root exposure and consequently the exposure of the furcation area is usually observed in multirooted teeth. In maxillary molar teeth, this fact may endanger the three existent furcations (buccal, mesial and distal), causing serious problems. In this research, distance measures from the buccal furcation to the mesial (F1M) and distal (F1D) surfaces of the mesio-buccal and disto-bu...

2008
Diego Dominici

We establish an equivalent condition to the validity of the Collatz conjecture, using elementary methods. We derive some conclusions and show several examples of our results. We also offer a variety of exercises, problems and conjectures.

Journal: :Australian endodontic journal : the journal of the Australian Society of Endodontology Inc 2007
Ameen Khraisat Leena Smadi

The purpose of this study was to investigate the canal configuration in the mesio-buccal root of maxillary first molar teeth of a Jordanian population using a clearing technique. One hundred extracted maxillary first molars were collected from Jordanian patients. After a standard access preparation, canals were stained, decalcified, dehydrated, and then rendered clear. The prevalence of a secon...

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