Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “Tooth Resorption”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

At least 1,675 records · Page 93Linked to original sources
PubMed1994

Clinico-pathological study of 30 unicystic ameloblastomas.

The clinico-pathological records of 30 unicystic ameloblastomas collected over a period of 10 years were studied. The mean age at diagnosis was 18.0 years (SD +/- 8.1), most lesions were located in the mandible and were frequently associated with impacted teeth, root resorption and tooth displacement. The unicystic ameloblastomas in 11 patients (4 females and 7 males) exhibited invasion of the fibrous wall, 4 cases (1 female and 3 males) showed intra-luminal proliferation and the remaining 15 specimens (9 females and 6 males) were lined by non-proliferating ameloblastic epithelium. Two cases recurred 3 and 7 years after initial surgical removal. This study reveals the potential aggressive behaviour of unicystic ameloblastomas and underlines the importance of a thorough microscopic examination for sub-classification.

Adolescent↗
PubMed1996

Idiopathic dental root replacement resorption in old dogs.

The roots of the teeth of 33 large dogs aged 10 years or older were radiographed. These dogs were euthanized for reasons other than oral diseases; dogs with obvious dental or periodontal diseases were excluded. The dogs had shown no clinical signs related to the teeth and the teeth were macroscopically normal. Of the 33 dogs, six had one or more teeth that had abnormally shaped and partially resorbed roots, with replacement of root structure by radiographically normal trabecular bone. Histological examination of radiographically abnormal roots revealed mid-root resorption, without signs of inflammation or hypercementosis. These findings are similar to the condition known as idiopathic dental root replacement resorption in the human dental literature. Possible etiologies of root resorption are discussed.

Animals↗
PubMed1997

Effects of dental trauma on the pulp.

Infection of the root canal system following dental trauma induces pulp and periapical disease and prevents healing of previously healthy pulp. A clinical goal in treating trauma is the maintenance of pulp vitality, and clinicians should be aware of factors that influence pulp healing. The learning objective of this article is to review the factors and techniques that influence pulp vitality and examine the influence pulp has on the healing of adjacent tissues. The potential routes for bacterial infection of the root canal system are discussed, with the clinical crown as the primary portal of entry. Uncomplicated and complicated crown fractures, as well as the crown-root and root fractures, are reviewed. Complications in pulp healing include canal obliteration, disturbed root development, apexogenesis, apexification, and the various forms of resorption.

Alveolar Process↗
PubMed1997

Root resorption and the impacted canine.

This article considers the incidence and outcome of incisor root resorption in cases where the upper permanent canine is impacted. A review of the associated factors indicates that it is not possible to predict when resorption will occur and so all impacted canines, whether buccal or palatal, should be regarded as potentially damaging. The management is discussed and illustrated by showing some examples.

Cuspid↗
PubMed1995

"Collagen adhesion" revisited.

Histologic studies of periodontal reconstructive therapies have repeatedly shown a zone of nondescript connective tissue adaptation, or collagen adhesion, to the root surface between the apical extension of the junctional epithelium and the coronal extension of identifiable regenerated cementum. To clarify the nature of this zone, supra-alveolar periodontal defects were created bilaterally in the mandibular premolar region in three beagle dogs, and exposed roots were instrumented to remove the cementum. Flaps were then coronally advanced and sutured. Histologic analysis after 12 weeks of healing showed instrumented root dentin not associated with junctional epithelium, new cementum, root resorption, or ankylosis in 27 of 60 root surfaces. In 10 of these specimens subsequently examined by transmission electron microscopy, collagen fibrils were generally oriented parallel to and in close proximity to the root. A mechanism of collagen attachment was, in fact, functioning at sites of collagen adhesion; these areas may validly be included in the histologic attachment level reported in studies of periodontal reconstructive therapy.

Animals↗
PubMed1998

Root resorption of dental and traumatic origin: classification based on etiology.

While root resorption is a relatively common complication of dental trauma, classifications of root resorption are inconsistent and confusing. All pathological root resorption of dental origin is inflammatory in nature. For root resorption to occur, the protective superficial layer must be (internally or externally) damaged or changed and an inflammatory stimulator must be present. This article attempts to classify root resorption on the basis of etiology, i.e., the cause of the protective layer loss and the cause of the inflammatory response, to facilitate more efficient treatment.

Bacterial Infections↗
PubMedDate not supplied

Growth considerations in planning treatment of avulsion in an adolescent.

Reimplantation failure of avulsed anterior teeth in an adolescent patient requires removal of the attempted-reimplanted teeth and consideration of several restorative options. These options may include a removable partial denture, as well as a transitional bridge or permanent fixed prosthesis. In all cases, the potential effects of the adolescent's expected amount and directions of maxillary and mandibular growth must be considered. A case is presented examining how maxillary growth may affect the restorative treatment options for avulsed anterior teeth replacement for an adolescent boy. Unfortunately, the patient and family were unable to complete treatment due to financial considerations. Consequently, the case presented here is submitted as a treatment planning exercise.

Adolescent↗
PubMedDate not supplied

The use of resin-ionomer in restorative procedures.

As the average age of the population increases, we are seeing a significant rise in root caries and in the need for restorative procedures associated more often with an older population. This paper describes the subgingival placement of a resin-ionomer for several restorative procedures, including root caries, resorption, endodontic perforation and root fracture. After endodontic therapy, full thickness flaps may be used to gain access to the lesion or root defect. The defects may be prepared with ultrasonic instruments and the preparations treated with a dentin conditioner. The preparations are then washed and lightly air-dried and treated with a dentin bonding agent. A resin-ionomer may then be syringed into the preparations and either light-activated or allowed to undergo a chemical set. No untoward effect has been observed during the time frame of this project. The cases presented indicate that a resin-ionomer may be used as a subgingival restorative and may be placed in lesions originally thought to be unrestorable. Thus, teeth may be saved that were previously designated for extraction.

Dental Restoration, Permanent↗
PubMed1998

External root resorption in orthodontics: avoiding high risk teeth. A case report.

External root resorption is one of the most exasperating and least understood clinical problems in orthodontics. Numerous studies have been conducted, attempting to establish the factors causing root resorption of permanent teeth. Considerable variation exists however, in the extent and distribution of root resorption, seen in the orthodontic treatment of apparently similar cases. After an excellent review of the literature, Brezniak and Wassertein (1993) concluded that the most significant disgnostic aid in predicting whether root resorption would occur during orthodontic treatment, is the radiographic evidence of root resorption before treatment. A case is reported, describing the dilemma of orthodontically treating a patient, who had previously experienced trauma to the upper right central incisor, leading to external root resorption.

Cephalometry↗
PubMed1998

Subattachment inflammatory root resorption: treatment strategies.

Attempts have been made to classify root resorption according to its etiology in order to develop more efficient strategies for its treatment. This condition has been identified as resulting from damage to the protective attachment layer (predentin or precementum) of the root combined with inflammation adjacent to the root surface. This article demonstrates a series of treatment strategies focused on the reversal of each manifestation of subattachment root resorption, specifically emphasizing defects that extend apically and localized defects.

Humans↗
PubMed1994

Anchorage and retentive effects of a bisphosphonate (AHBuBP) on tooth movements in rats.

The purpose of this study was to examine the effect of 4-amino-1-hydroxybutylidene-1,1-bisphosphonate (AHBuBP), a potent blocker of bone resorption, on orthodontic tooth movements in rats. In the first experiment, the right and left upper first molars were moved buccally for 3 weeks with a uniform standardized expansion spring under systemic administration of AHBuBP every other day. The total tooth movement during the 3-week experimental period was 40% of that in the control at a dose of 0.5 mg P/kg. In the second experiment, the right and left upper first molars were first moved buccally for 3 weeks without AHBuBP. The spring was then removed and administration of AHBuBP was initiated. The total relapse movement during the 3-week experimental period was 50% of that in the control at a dose of 0.5 mg P/kg. Results of the first and second experiments were both dose dependent. Histologic examination showed that in the experimental animals fewer osteoclasts appeared on the alveolar bone surface, and both bone resorption and root resorption were inhibited. Inhibition of tooth movement was also observed when AHBuBP was applied topically. These results suggest that AHBuBP could be useful in enhancing anchorage or retaining teeth in orthodontic treatment.

Alendronate↗
PubMed1998

Autogenous free tooth transplantation by the two-stage operation technique. An analysis of treatment factors.

Teeth were autogenously transplanted by the 2-stage technique in adult patients and examined up to 5 years after surgery for the prevalence of, and correlation between, tooth graft loss, root resorption, ankylosis, periodontal attachment loss, tooth mobility, and pain. The influence on the dependent variables of independent variables related to the patient, the donor tooth, the recipient site, and the transplantation procedure was examined. Pain was correlated to transplanted teeth, later extracted, and teeth with periodontal attachment loss. The expected correlation of root resorption to periodontal attachment loss was not verified owing to incomplete follow-up. The older the patient was, the less root resorption was found. Variables indicative of infection of the recipient bed and of traumatic injuries to the donor tooth at the transplantation were found to be detrimental to the tooth transplant.

Adolescent↗