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At least 1,333 records · Page 74Linked to original sources
PubMedDate not supplied

Menkes disease: report of two cases.

Menkes disease is a rare, autosomal recessive disorder characterized by neuronal degeneration, abnormal hair, malformed connective tissue, mental retardation, and a life span of three years. Previously reported dental findings include a high arched palate, delayed eruption of secondary dentition, and open bite. The case of twin seven-year-old males with Menkes disease is presented, along with previously unreported dental findings of spindle-shaped root resorption patterns on the primary maxillary central and lateral incisors.

Child↗
PubMed2002

Treatment and posttreatment dentoalveolar changes following intrusion of mandibular molars with application of a skeletal anchorage system (SAS) for open bite correction.

The skeletal anchorage system (SAS) consists of titanium anchor plates and monocortical screws that are temporarily implanted in either the maxilla or the mandible as absolute orthodontic anchorage. With SAS, anterior open bite can be improved by the counterclockwise rotation of the mandible, accompanied by the intrusion of molars. The present study was designed to evaluate treatment and posttreatment dentoalveolar changes following the intrusion of mandibular molars. Nine adult open bite patients (7 women and 2 men) successfully treated with SAS were included in the following study. The amount of intrusion, relapse, and dentoalveolar changes were measured on cephalometric radiographs, panoramic radiographs, and dental casts. The results of this study were as follows: (1) the average amount of intrusion of the mandibular first and second molars was 1.7 mm and 2.8 mm, respectively; (2) the average relapse rates were 27.2% at the first molars and 30.3% at the second molars; (3) there were no significant changes in crestal bone heights, clinical crown length, or root length; and (4) counterclockwise rotation of the mandible and decrease of anterior facial height were observed during treatment. Thus, it was concluded that SAS would be a valid modality to intrude mandibular molars for correction of open bite.

Adolescent↗
PubMed2003

Permanent incisors traumatized through predecessors: sequelae and possible management.

This report describes the sequence of events following a traumatic dental injury to primary maxillary anterior teeth of a five-year old male during a bicycle accident. The development of the affected teeth during the subsequent ten years was studied from the radiographic records. A detailed account of the clinical and radiographic findings as well as the physio-pathologic changes that have taken place is discussed. In view of the inevitable prognosis of dentitions that sustain traumatic injury during the formative years preventive measures and feasible dental management are proposed. These precautionary measures are aimed to circumvent the sequelae that were experienced in the present case, and avoid predictable complications.

Bicycling↗
PubMed2003

[Complications of injuries to deciduous teeth].

The traumatisms of the temporary teeth are very frequent. They are bound to the acquirement of the march, to the games, to the sport and to the accidents of the public way. Favoured by the presence one improved proalveoly, they constitute a dental emergency of makes some important risks of complications. Indeed, these traumatisms, in case of belated conference and/or of maladjusted treatment or conducted pain, could induce some complications and have some aesthetic and functional after effects on the dental germ underlying. Some of these complications observed in some patients are stakes in evidence by some iconographic illustrations.

Child, Preschool↗
PubMedDate not supplied

Primary hyperoxaluria in a pediatric dental patient: case report.

A case is presented in which primary hyperoxaluria and oxalosis in a 14-year-old Caucasian female were diagnosed. Generalized root resorption resulted in a remarkable mobility of her maxillary central and lateral incisors, although no bone loss was noted. The management of the patient's dental concerns in this rare heritable metabolic disorder consisted of removing the maxillary incisor teeth and placing two sequential prostheses, which the patient tolerated well. A history of trauma to the maxillary incisors was ruled out, so this case adds previously unreported information to our knowledge about the effect of oxaluria on teeth and oral tissues.

Adolescent↗
PubMed1992

Root resorption following traumatic dental injuries.

Permanent teeth are usually not attacked by osteoclasts despite their situation in a site where active bone resorption constantly takes place as a result of local and systemic osteoclast activating factors. This fact points to antiresorption factors residing in both the periodontal ligament (PDL) and the pulp. Concerning the PDL homeostasis factor (i.e. permanency of a separation between the alveolar socket and the root surface and protection of the root surface against osteoclastic activity), recent studies have shown that this factor, at least with respect to trauma and wound healing, is linked to, and probably resides in, the cementoblast layer and/or the cells next to this layer. If there is loss of this tissue integrity, root resorption may occur; especially if non-PDL derived cells gain access to the site. With respect to the pulp, no systematic research has been performed regarding the homeostasis of this structure (i.e. permanency of the pulpal organ with its specific anatomy and functional stability). In evaluating the events where resorption does occur, it appears that the loss of tissue components within the pulp (including odontoblasts) implies a risk of root canal resorption if nonpulpally derived cells gain access to the site. Root resorption following traumatic dental injuries, whether located along the root surface or within the root canal appears to be a sequel to wound healing events, where a significant amount of the PDL or pulp has been lost due to the effect of acute trauma. The goal of these processes is removal of injured tissue from zones of trauma, space creation for neovascularization or control of infection. Irrespective of the goal, these processes have a potential for root resorption. The type of tissue repair, i.e. repair originating from the dental pulp, the PDL or bone or a combination, seems to be of importance in determining the risk of root resorption during the healing process.

Dental Pulp↗
PubMed1992

[Risks and benefits of removal of impacted third molars: critical review of the literature. 1].

Because of the ever-increasing enthusiasm that new graduates have demonstrated for practising minor oral surgery procedures, the authors believed that it would be useful to translate the results of a research project done in 1990 by Drs. David S. Precious and Paul Mercier, who are well-known oral and maxillofacial surgeons. This paper is about the risks and benefits associated with the removal of impacted third molars.

Humans↗
PubMed2003

Ameloblastic carcinoma: case report and literature review.

Ameloblastic carcinoma is a rare malignant lesion with characteristic histologic features and behaviour that dictates a more aggressive surgical approach than that of a simple ameloblastoma. However, reliable evidence of its biologic activity is currently unavailable due to the scarcity of well-documented cases. It occurs primarily in the mandible in a wide range of age groups; no sex or race predilection has been noted. It may present as a cystic lesion with benign clinical features or as a large tissue mass with ulceration, significant bone resorption and tooth mobility. Because the lesion is usually found unexpectedly after an incisional biopsy or the removal of a cyst, a guide to differential diagnosis is not usually useful. The identifying features of ameloblastic carcinoma must be known and recognized by dental practitioners. Our understanding of the histologic features of ameloblastic carcinoma is somewhat vague. The tumour cells resemble the cells seen in ameloblastoma, but they show cytologic atypia. Moreover, they lack the characteristic arrangement seen in ameloblastoma. The clinical course of ameloblastic carcinoma is typically aggressive, with extensive local destruction. Direct extension of the tumour, lymph node involvement and metastasis to various sites (frequently the lung) have been reported. Wide local excision is the treatment of choice. Regional lymph node dissection should be considered and performed selectively. Radiotherapy and chemotherapy seem to be of limited value for the treatment of ameloblastic carcinomas. At the moment, there are too few reported cases to make a definite recommendation regarding treatment. Close periodic reassessment of the patient is mandatory.

Aged↗
PubMedDate not supplied

Clinical evaluation of short, machined-surface implants followed for 12 to 92 months.

PURPOSE: Bone resorption following tooth loss often limits the quantity of bone available for implant placement. The purpose of the present study was to evaluate the clinical outcome of 10-mm or shorter machined-surface implants when used exclusively in the treatment of various forms of edentulism. MATERIALS AND METHODS: Two hundred sixty-nine screw-type Brånemark System implants (Nobel Biocare), 10 mm or shorter, were placed in 111 consecutively treated patients. Of the total, 88.8% were placed in the mandible and 11.2% were placed in the maxilla; 95.2% were used to treat partially edentulous situations, including single-tooth losses, of which 96.6% were in the premolar and molar regions. The patients were followed for periods of 12 to 92 months. RESULTS: Of the 269 placed implants, 12 were lost. The overall survival rate was 95.5%. Bone quality 2 and 3 (Lekholm-Zarb classification of 1985) was found in 88.8% of the treated sites. There was no statistical difference in the survival rate of the 10-mm implants when compared to the shorter series (P > .05) or between the various implant diameters. The mean marginal bone loss was 0.71 +/- 0.65 mm. DISCUSSION: The failure rate of 4.5% compares favorably with that of implants of different shape, surface characteristics, and length. Bone quality appeared to be the critical factor in implant survival, rather than bone quantity, in this patient series. CONCLUSIONS: This study supports the survival of short, machined-surface implants when used for the treatment of partial edentulism in bone of good quality.

Adult↗