نتایج جستجو برای: third tooth

تعداد نتایج: 330885  

Journal: :iranian endodontic journal 0
mohsen aminsobhani department of endodontics, dental school, dental research center, tehran university of medical sciences/ iranian center for endodontic research, tehran, iran behnam bolhari department of endodontics, dental school, dental research center, tehran university of medical sciences, tehran, iran noushin shokouhinejad department of endodontics, dental school, dental research center, tehran university of medical sciences/ iranian center for endodontic research, tehran, iran abdollah ghorbanzadeh department of endodontics, dental school, dental research center, tehran university of medical sciences, tehran, iran sholeh ghabraei department of endodontics, dental school, dental research center, tehran university of medical sciences, tehran, iran mohamad bagher rahmani dentist, private practice, tehran, iran

adequate cleaning, shaping and filling of the root canal system are mandatory for successful root canal treatment. thorough knowledge of root canal morphology and unusual anatomy of the tooth is critical for the practitioner. the occurrence and location of the third mesial canal (middle mesial canal) in mandibular first and second molars in relation to other two mesial canals that were treated ...

Journal: :journal of dentistry, tehran university of medical sciences 0
simindokht zarrati mehran bahrami fatemeh heidari jamal kashani

objectives : this finite element method study aimed to compare the amount of stress on an isolated mandibular second premolar in two conventional reciprocal parallel interface designs of removable partial dentures (rpds) and the same rpd abutment tooth (not isolated). materials and methods: a kennedy class 1, modification 1 rpd framework was simulated on a 3d model of mandible with three differ...

2018
Kasusu K. Nyamuryekung’e Satu M. Lahti Risto J. Tuominen

BACKGROUND Tooth filling treatment is utilized at low levels in many low and middle-income countries (LMICs), further, little is known about the prevailing attitudes towards such treatment. This study aimed to assess attitudes towards tooth filling among Tanzanian adults and how previous tooth filling experience is associated with these attitudes. METHODS A pretested structured questionnaire ...

2013
G. Siva Prasad Reddy G. V. Reddy I. Venkata Krishna Shravan Kumar Regonda

A supernumerary tooth is that which is present additionally to the normal series and can be found in any region of the dental arch. An impacted tooth is defined as the one which is embedded in the alveolus, so that its eruption is prevented, or the tooth is locked in position by bone or the adjacent teeth. The occurrence of multiple supernumerary teeth in only one patient in the absence of an a...

Journal: :American journal of orthodontics and dentofacial orthopedics : official publication of the American Association of Orthodontists, its constituent societies, and the American Board of Orthodontics 2000
H Vastardis

The important role of genetics has been increasingly recognized in recent years with respect to the understanding of dental anomalies, such as tooth agenesis. The lack of any real insight into the cause of this condition has led us to use a human molecular genetics approach to identify the genes perturbing normal dental development. We are reporting a strategy that can be applied to investigate...

Journal: :Archives of oral biology 1995
S Wroe M Archer

A time-dependent, fundamental change in function for a sectorial tooth in a group of extinct, propleopine kangaroos is reported. In juvenile Ekaltadeta ima (Marsupialia, Hypsiprymnodontidae, Propleopinae) the second premolar (P2) functions as a serrated blade at the anterior end of the cheek tooth row. In adults, this tooth drops far below the occlusal plane of the cheek tooth row where it assu...

2015
Daniela E. Winkler Thomas M. Kaiser Laura Wilson

Unworn teeth of herbivorous mammals are not immediately functional. They have to be partially worn to expose enamel ridges which can then act as shear-cutting blades to break the food down. We use the Plains Zebra (Equus quagga) as a hypsodont, herbivorous model organism to investigate how initial wear of the tooth crown is controlled by underlying structures. We find that the enamel proportion...

2014
Khalid H Zawawi Marcello Melis

AIMS To evaluate the role of third molars in the development of crowding or relapse after orthodontic treatment in the anterior segment of the dental arch. METHODS PubMed search of the literature was performed selecting all the articles relevant to the topic and limiting the studies to controlled trials on humans and written in English language. Systematic review was conducted according to th...

2012
Manjot Kaur

Tooth development results from a complicated multistep interaction between the oral epithelium and the underlying mesenchymal tissue. Abnormal tissue interactions during tooth development may potentially result in ectopic tooth development and eruption. We report a case of unerupted second molar and impacted third molar and an attempt is made to review possible causes of noneruption of teeth an...

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