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Biomedical subjects

W W Conklin

Publications and source records attributed to W W Conklin.

13 recordsLinked to original sources

Transplantation of mandibular third molar in seventh decade: long-term follow-up and evaluation.

Transplantation of a nonfunctional mandibular third molar into the opposite mandibular second molar site, where it was necessary to remove the second molar of a 61-year-old patient, has been reported. There was long-term follow-up and evaluation, with radiographs and clinical examination during the ninth postoperative year. The patient had no complaints related to the transplant at the long-term follow-up visit. The periodontal tissues were in excellent condition. The tooth was firm, and the radiograph demonstrated growth of new attachment by showing lamina dura and periodontal ligament space. There was filling-in of bone in the lateral and periapical areas, and there was no evidence of resorption. A root canal filling had been acquired in the transplant between the second and ninth postoperative years.

Age Factors

Long-term follow-up and evaluation of transplantation of fully developed teeth.

Five cases of transplantation of fully developed third molars to second or first molar sites have been reported. Three of the transplants were in the mandibular molar region and two were in the maxillary molar region. There has been long-term follow-up and evaluation of the patients in these cases up to 13 years postoperatively. None of the patients had any complaint about the transplanted tooth at the long-term follow-up visit. In all five cases, at the long-term follow-up visit, the periodontal tissues were in excellent condition and there was growth of new attachment, as demonstrated by lamina dura and periodontal membrane space in the follow-up radiographs, deposition of secondary calcification of varying amounts within the root canals and pulp chamber, and regeneration of bone in the periapical and lateral areas. There was very little, if any, resorption demonstrated in any of these five cases. The ages of patients ranged from 17 to 23 years at the time of transplantation. Regeneration of the buccal plate was demonstrated by photographs in one of the two cases where there was surgical exposure of the region of the buccal plate at a postoperative follow-up visit.

Adolescent

Bilateral dens invaginatus in the mandibular incisor region.

A case of bilateral dens invaginatus in the mandibular incisor regions has been reported. Radiographs demonstrated invaginations in both of the incisors in the mandibular incisor region and also demonstrated a periapical radiolucency. Clinical examination revealed two anomalous incisors and apparently there was congenital absence of two mandibular incisors. Dens invaginatus in the mandibular incisors would appear to be a most unusual occurrence.

Adult

Double bilateral dens invaginatus in the maxillary incisor region.

Two cases of bilateral double dens invaginatus in the maxillary incisor region have been reported. One of the patients (Case 1), a 12-year-old boy, had double invaginations in both of the erupted teeth in the maxillary lateral incisor region. The other patient (Case 2), a boy 8 years of age, had double invaginations in each of the two partially developed supernumerary teeth that were impacted in the palate in the maxillary central incisor region. Double bilateral dens invaginatus would appear to be a most unusual occurrence.

Child

Hidden cyst.

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Adult

Macrodontia.

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Adolescent

Eruption cysts.

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Dentigerous Cyst