نتایج جستجو برای: tooth fracture

تعداد نتایج: 181576  

Journal: :journal of dental research, dental clinics, dental prospects 0
maryam gharechahi assistant professor of endodontics, dental research center, school of dentistry, mashhad university of medical sciences, mashhad, iran

root fracture injuries affect up to 7% of permanent teeth. this type of injury is rarely seen in teeth with open apices and depending on the fracture site, the prognosis is good. this case report describes a horizontal intra-alveolar root fracture in the middle third of a maxillary central incisor associated with an extrusive luxation of the coronal segment and its treatment in a 6-year-old gir...

ژورنال: مجله دندانپزشکی 1998
فقیه نصیری, الهام , محمودیان, ژاله , کوثری, علی ,

Anterior tooth crown fracture in children is something that each dentist will confront many times during his professional career.We studied the prevalence of anterior teeth crown fractures between 7-14 years old students in Tehran and some relevant factors like sex, age, the traumatized tooth, amount of overbite and overjet, upper lip coverage, jaw that had fractured tooth or teeth and place of...

Journal: :iranian endodontic journal 0
maryam zare jahromi assistant professor of endodontics, dental school, islamic azad university of medical sciences, khorasgan, isfahan, iran parvin mirzakouchaki 2. assistant professor of operative dentistry, dental school, islamic azad university of medical sciences, khorasgan, isfahan, iran. elnaz mousavi 3. postgraduate student of endodontics, dental school, islamic azad university of medical sciences, khorasgan, isfahan, iran amir arsalan navabi 3. postgraduate student of endodontics, dental school, islamic azad university of medical sciences, khorasgan, isfahan, iran

introduction: the aim of this in vitro study was to compare the effect of hand and rotary instruments on fracture strength of tooth roots. materials & methods: thirty two teeth were randomly divided into two experimental groups of 15 each and one negative control group with two samples. in group 1, step-back technique with conventional stainless steel k-files was used, and in group 2, instrumen...

Journal: :journal of dentistry, tehran university of medical sciences 0
hassan torabzadeh associate professor, iranian center for endodontic research, research institute of dental sciences, shahid beheshti university of medical sciences, tehran, iran. amir ghasemi associate professor, dental research center, research institute of dental sciences of shahid beheshti university of medical sciences, tehran,iran. atoosa dabestani private practice, preventive dentistry research center, research institute of dental sciences of, shahid beheshti university of medical sciences, tehran, iran. sara razmavar reseach fellow, preventive dentistry research center, research institute of dental sciences of, shahid beheshti university of medical sciences, tehran, iran.

tooth fracture is a common dental problem. by extension of cavity dimensions, the remaining tooth structure weakens and occlusal forces may cause tooth fracture. the aim of this study was to evaluate and compare the fracture resistance of teeth restored with direct and indirect composite restorations.sixty-five sound maxillary premolar teeth were chosen and randomly divided into five groups eac...

Journal: :journal of dental school, shahid beheshti university of medical sciences 0
e. amin salehi dept. of restorative dentistry, dental school, islamic azad university of medical sciences, tehran, iran. m. ghorbani dept. of restorative dentistry, dental school, islamic azad university of medical sciences, tehran, iran. r. hassani z. amirzadeh dept. of oral medicine, dental school, islamic azad university of medical sciences, tehran, iran.

objective: introduction of fiber-reinforced composites (frc) greatly enhanced the restoration of fractured anterior teeth. the purpose of this study was to assess the effect of fiber reinforcement on fracture resistance of incisal edge composite restorations of variable thicknesses. methods: forty extracted sound human maxillary incisors were divided into four groups of 10. incisal reduction wa...

2015
Mamta Agrawal

Mandibular fracture in children usually results in the involvement of a tooth bud directly in the fracture line. A study by Koenig et al (1994) proves that the injury has the potential to damage the developing tooth germ. The presence of infection may also adversely affect the developing tooth and the fracture union. Specific treatment guidelines for developing tooth buds located in the line of...

Journal: :dental research journal 0
samir zahedpasha hengameh safarcherati manouchehr rahmati-kamel javad mehrani-sabet

this case report describes the multidisciplinary management of subgingival horizontal crown–root fracture of an immature permanent maxillary central incisor in a 10-year-old boy. after removal of the fractured fragment, pulpotomy was performed within 48 h from the injury to promote apexogenesis. the tooth was orthodontically extruded until the fracture line was located above the alveolar bone l...

Journal: :iranian endodontic journal 0
emmanuel joão nogueira leal da silva piracicaba dental school - state university of campinas gustavo romão dos santos uerj renato liess krebs uerj tauby de souza coutinho-filho uerj

vertical root fracture (vrf) has been a great challenge in dentistry; most fractures often result in tooth extraction. inflammation of tissues around the fractured root is the main reason for tooth extraction. based on the strategic importance of some fractured teeth, treatment may be necessary and often complicated. however, performing a proper repair or even splinting the fractured segments m...

2012
Nima Moradi Majd Farshid Akhtari Solmaz Araghi Hamed Homayouni

Introduction. Vertical root fracture (VRF) is one of the most frustrating complications of root canal treatment. The prognosis of the root with VRF is poor therefore tooth extraction and root amputation are usually the only treatment options. However, bonding of the fracture line with adhesive resin cement during the intentional replantation procedure was recently suggested as an alternative to...

ژورنال: مجله دندانپزشکی 2003
فرجی, پرویز , قندهاری مطلق, مهدی ,

Statement of Problem: Central crown fractures of deciduous and permanent teeth lead to unfavorable psychological effects on both children and their parents. Moreover, it can cause malocclusion. So,recognizing tooth fracture reasons plays an important role to prevent its side effects.Aim: The aim of this study was to investigate the reasons' of permanent central crown fractures in (7-12)years ...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید