نتایج جستجو برای: permanent teeth

تعداد نتایج: 93245  

Journal: :Pediatrics 2015
Matina V Angelopoulou Elias Kontogiorgos Dimitris Emmanouil

Congenital adrenal hyperplasia (CAH) is an inherited autosomal recessive disorder characterized by insufficient production of cortisol. The aim of this case report was to present a child with CAH, premature exfoliation of primary teeth and accelerated eruption of his permanent teeth related to bone resorption. A 4.5-year-old Caucasian boy with CAH and long-term administration of glucocorticoids...

2007
Evlambia Harokopakis - Hajishengallis

Root resorption is a physiologic event for the primary teeth. It is still unclear whether odontoclasts, the cells which resorb the dental hard tissue, are different from the osteoclasts, the cells that resorb bone. Root resorption seems to be initiated and regulated by the stellate reticulum and the dental follicle of the underlying permanent tooth via the secretion of stimulatory molecules, i....

Journal: :Refu'at ha-peh veha-shinayim 2014
A J Diangelis J O Andreasen K A Ebeleseder D J Kenny M Trope A Sigurdsson L Andersson C Bourguignon M T Flores M l Hicks A R Lenzi B Malmgren A J Moule Y Pohl M Tsukiboshi

Avulsion of permanent teeth is one of the most serious dental injuries, and a prompt and correct emergency management is very important for the prognosis. The International Association of Dental Traumatology (IADT) has developed a consensus statement after a review of the dental literature and group discussions. Experienced researchers and clinicians from various specialties were included in th...

Journal: :Pediatric dentistry 2002
Zenzo Miwa Motohide Ikawa Hideyo Iijima Makoto Saito Yuzo Takagi

PURPOSE The purpose of this study was to record transmitted-light photoplethysmography (TLP) from young permanent teeth and examine its applicability to pulp vitality assessment. METHODS Twenty-six healthy and 7 nonvital upper maxillary incisors in 17 children (ages 7 years, 3 months to 14 years, 8 months) were examined. Recordings of TLP were made with and without opaque black rubber dam app...

Journal: :Medicina oral, patologia oral y cirugia bucal 2010
Mevlut Celikoglu Hasan Kamak Hüsamettin Oktay

OBJECTIVE The objectives of the present study were to investigate the prevalence and characteristics of supernumerary teeth and evaluate the associated pathologies and treatment protocol in a Turkish patient population. STUDY DESIGN A retrospective study was performed using full-mouth periapical and panoramic radiographs of 3491 patients (2146 females and 1345 males) ranging in age from 12 to...

Journal: :Pediatric dentistry 1989
G Dahllöf M Näsman A Borgström T Modéer C M Forsberg A Heimdahl O Ringdén

Dental maturity or dental age was determined in 44 children with hematological malignancies treated with chemotherapy. No significant difference was observed between the chronological and dental age in children treated with chemotherapy compared to healthy controls. With regard to the number of erupted permanent teeth, no significant differences could be found between the two groups. The result...

2014
Sherif S Darwish Shadia H Abd El Meguid Nadia A Wahba Ahmed A-R Mohamed Wojciech Chrzanowski Ensanya A Abou Neel

The success of pulpotomy of young permanent teeth depends on the proper selection of dressing materials. This study aimed to evaluate the histological and histomorphometric response of dentin-pulp complex to the enamel matrix derivative (Emdogain(®) gel) compared to that of calcium hydroxide when used as a pulp dressing in immature young permanent dogs' teeth. Dentin-like tissues bridging the f...

Journal: :General dentistry 2010
Gregg H Gilbert Ken R Tilashalski Mark S Litaker Sandre F McNeal Michael J Boykin Allen W Kessler

This study sought to quantify the incidence of root canal treatment (RCT) failure and identify its predictors in root canals that were performed or referred by general dentistry practices in a practice-based research network (PBRN). This retrospective cohort study involved 174 endodontically treated teeth. Mean duration from initial therapy to follow-up was 8.6 years. Permanent restorations wer...

Journal: :BMJ 2000
R Holt G Roberts C Scully

Teeth form mainly from neuroectoderm and comprise a crown of insensitive enamel surrounding sensitive dentine and a root that has no enamel covering. Teeth contain a vital pulp (nerve) and are supported by the periodontal ligament, through which roots are attached into sockets in the alveolar bone of the jaws (maxilla and mandible). The fibres of the periodontal ligament attach through cementum...

Journal: :Dental traumatology : official publication of International Association for Dental Traumatology 2013
Anne B Skaare Anne-Lise Maseng Aas Nina J Wang

UNLABELLED Trauma to primary teeth may cause mineralization disturbances in the permanent successors. OBJECTIVE To study the distribution and type of enamel defects in permanent incisors after trauma to primary teeth and to examine inter-observer agreement when registrations were based on photographs. MATERIAL AND METHODS Of 266 children who suffered an oral injury to primary teeth in one c...

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