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Results for “Tooth Replantation”

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At least 19 recordsLinked to original sources
PubMed1979

Eleven-year follow-up of tooth replantation.

An 11-year clinical and radiographic follow-up of an avulsed tooth, replanted within 15 minutes, has been presented. The periodontal membrane can be traced around the replanted central incisor, indicating the tooth is not ankylosed and is functionally attached. It is not anchored immutably to the bone. The tooth has responded dynamically to growth and development of the maxilla and now abuts and aligns well with the other teeth in the arch.

Adolescent↗
PubMed1992

Effect of stannous fluoride and tetracycline on periodontal repair after delayed tooth replantation in dogs.

Previous studies have indicated that inflammatory resorption and ankylosis, which are frequent sequela after delayed tooth replantation, can be greatly reduced by treating the root surface with 1% solutions of stannous fluoride and tetracycline. However, the SnF2 conditioning leaves a long-standing inflammatory reaction in the periodontal ligament. To examine whether a more dilute SnF2 solution would reduce postoperative inflammation without jeopardizing any beneficial effects, anterior teeth in three young adult beagles were extracted and allowed to air-dry for 45 min. They were then immersed in 0.1% SnF2 for 5 min, rinsed in saline, immersed in 1% doxycycline HCl for 5 min, rinsed, and replanted. Control teeth were air-dried and replanted without further treatment. Block biopsies were harvested after 4 wk of healing and processed for histometric analysis. In experimental teeth, 85% of the root surface area showed normal healing, compared to 33% in control teeth. Conversely, resorption and ankylosis were more frequent in controls than in experimental teeth. A persisting inflammatory reaction either adjacent to or at a distance from the root surface was seen in limited areas in both experimental and control teeth. Compared to preceding studies, the findings indicate that reducing the strength of the SnF2 solution from 1% to 0.1% may result in less persistent inflammation, at the cost, however, of less complete prevention of inflammatory resorption and ankylosis.

Alveolar Process↗
PubMed1992

Replanting avulsed primary teeth.

Tooth replantation is a viable procedure if performed under the following acceptable guidelines: Replant the tooth if time lapse is less than 30 minutes (a time lapse of more than one to two hours results in a poor prognosis); Transport the tooth or teeth in milk, saliva or blood; and Keep teeth and replant area clean to minimize infection. Quick action by the mother in bringing the child to the hospital emergency room was a vital first step. The fact that the child held the teeth in her mouth en route to the hospital--bathed in saliva and blood, still attached by the bit of gingival tissue in the warm mouth's environment--helped to contribute to a positive situation as well as did the good home care.

Child, Preschool↗
PubMed1992

Intentional replantation of a removable partial denture abutment tooth: a case report.

Intentional tooth replantation is a last-resort procedure, recommended only when all other techniques, short of tooth extraction, have been exhausted or are impractical. Although most endodontic textbooks describe the procedure, and many reports of intentional replantation have appeared in the dental literature, none have reported use of the technique to retain a removable partial denture abutment tooth. This article presents such a case and the rationale for the decision to intentionally replant. Eighteen-month follow-up clinical and radiographic results are presented.

Bicuspid↗
PubMedDate not supplied

[The effect of vicasol and pelentan on the biopolymers of the periodontium].

Vitamin K (vikasol) and pelentan were examined for their effects of periodontal tissue levels of collagen, hexosamine-containing biopolymers and sialoglycoproteins. During tooth replantation in dogs, vitamin K was demonstrated to elevate the levels of collagen, hexosamine-containing polymers in periodontal tissue by 25.8, 19.9, and 36.1%, respectively, whereas pelentan lowered the above parameters.

Animals↗
PubMed1992

Effects of dental trauma on pulpal and periodontal nerve morphology.

Regeneration and morphological changes in sensory peptidergic nerves in pulp and periodontium were studied after general dental trauma by means of immunohistochemistry. In control teeth also the total nerve supply was demonstrated by using antibody to the general neuronal marker, protein gene product (PGP)9.5. Two experimental rat models were used, i.e. tooth replantation and induced traumatic occlusion. Results from these studies are reviewed here. In the controls, the PGP9.5-immunoreactive(IR) nerve supply in pulp and periodontium was generally denser compared to CGRP-IR and SP-IR nerves. In the replanted teeth, regeneration of CGRP-IR nerves closely followed the pulp cell renewal. Density and distribution of the regenerated nerves showed two different patterns which seemed to depend on the capacity of the renewed pulp to form postoperative dentine. The nerve density never reached the same level as the controls. In teeth not able to form irregular dentine, the pulp was sparsely innervated and the pulp cavity was filled with innervated bone. Nerve responses in CGRP-IR and SP-IR nerves after unilateral induced traumatic occlusion in the first maxillary molar were studied at different observation periods up to 30 days. After 5 days, localized morphological nerve changes were found both in the pulp and periodontium within the total rat molar dentition. With increasing observation periods, the pulpal neural changes progressed and were extended to all pulpal areas compared to the periodontium, where the nerve responses remained localized to cervical and apical tissues throughout the experiment.

Animals↗
PubMed1992

Treatment of traumatic dental injuries in children.

The major emphasis of this review should rest on articles written within the past 12 months. Many of these papers comprise comprehensive surveys of treatment of various aspects of dental trauma in the primary and permanent dentition, as well as epidemiological studies. There have also been some very good experimental studies which have attempted to standardize luxation injuries as well as tooth replantation in order to study pulpal and periodontal healing in reproducible animal models. However, it can be seen from the reference list that one year's production in dental traumatology would not suffice to cover the scope of the treatment needs nor to adequately orient the reader on the progress made with respect to our present knowledge of wound healing following injury and the most recent developments in the restoration of the traumatized dentition. To present an overall view of the philosophy which has evolved concerning wound healing in the dental pulp and periodontium following injury as well as innovations in the treatment of acute dental trauma, this review must of necessity delve back into the mid-80's and probe forward into publications which are on the way in 1991. In 1984, in Dallas, Texas, the American Association of Endodontists' Endowment and Memorial Foundation convened the first International Conference on Oral Trauma. In 1989, in Stockholm, Sweden, this was followed up with the second International Conference on Dental Trauma. The one-day program summarized the state of the art of dental traumatology with respect to various aspects of epidemiology, diagnosis, treatment and prevention as well as the biological principles which form a basis for our present knowledge about healing and healing complications in the pulp and periodontium after traumatic dental injuries. The proceedings from this conference have been compiled in a newly published volume. Where applicable, these presentations have been cited as current reviews. It could also be mentioned that at the conclusion of the second conference, in recognition of the need to promote research and propagate knowledge in the area of dental traumatology, the International Association of Dental Trauma (IADT) was founded. The third International Conference on Dental Trauma was convened in Copenhagen, Denmark, June 1991. The major theme was restoration of the traumatized dentition. Proceedings from this conference are to be published. However, new information from that program is also cited in the following where applicable. Finally, the second Charlotte Conference on Pathobiology of the Dentin/Pulp Complex was held in Charlotte, North Carolina in May 1991.(ABSTRACT TRUNCATED AT 400 WORDS)

Adolescent↗
PubMed1979

A radiographic evaluation of the response of previously avulsed teeth and partially avulsed teeth to orthodontic movement.

Orthodontic movement, as documented in this study, can be accomplished successfully in the case of completely avulsed and partially avulsed teeth which have been reimplanted. These teeth respond to normal orthodontic forces and duration of treatment time by conventional orthodontic techniques and retention. Apical root resorption does occur more readily in these teeth before, during, and after orthodontic treatment. Six of the eighty-one involved teeth were lost because of complete root dissolution. The involved teeth which were reimplanted immediately without pulpal treatment and their integrity protected as living tissue were successfully treated orthodontically with no known losses as of this writing. It will be interesting to observe the tissue response of these avulsed teeth in the years ahead. How will time and circumstances deal with these teeth?

Adolescent↗
PubMed1977

Long-term results after intentional tooth reimplantation in monkeys.

The purpose of this study was to evaluate histologically the long-term response to intentional tooth reimplantation in six rhesus monkeys. The study revealed that cervical and apical root resorption is a universal complication after tooth reimplantation and that arrested areas of resorption will show repair by deposition of cementum. A highly cellular periodontal membrane usually will develop. Periodontal fibers will reattach to reparative bone and cementum but seldom regain functional orientation. Partial or complete ankylosis may result. A further complication is progressive undermining resorption of the ankylosed teeth. Long-term studies are mandatory to evaluate the response to intentional tooth reimplantation.

Alveolar Process↗
PubMed1978

Submergence of roots for alveolar bone preservation. II. Reimplanted endodontically treated roots.

Root canal therapy was accomplished on the mandibular premolars of four dogs. These premolars were then extracted, contoured, reimplanted, and submerged. Resorption occurred up to 60 days; healing progressed satisfactorily, with some evidence of coronal osseous regeneration. Root canal sealer was expressed out the coronal orifice after the roots were submerged. This sealer appeared to affect normal healing over the coronal surface of the roots.

Alveolar Process↗
PubMed1979

Cultivation of fibroblasts on human teeth. Ultrastructural observations of cells cultivated in multilayers.

The periodontal ligament in a traumatically lost tooth is often destroyed due to drying. In attempts to restore the periodontal ligament, a technique has been worked out for using gingival biopsies as an alternative cell source. A biopsy from the attached gingiva was set up for tissue cultivation. After the establishment of a pure fibroblast culture, cells were repeatedly added to the root surfaces of 12 human teeth from which the cells and the original periodontal ligament had been removed. The teeth were examined in the transmission electron microscope. The root surface of specimens from all 12 teeth was covered with a pelliclelike material arranged in a layered pattern. The cells frequently appeared in multilayers on top of the pellicle. The cells were flattened and appeared elongated in sections. Areas of close proximity between cells and the pellicular material were seen and were interpreted as adherence junctions. The possibility that these multicellular arrangements can replace the periodontal ligament in transplantation has to be further investigated.

Cell Membrane↗