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Biomedical subjects

J Skribner

Publications and source records attributed to J Skribner.

14 recordsLinked to original sources
PubMed1993

Electric pulp tester and apex locator barrier technique.

Use of the electric pulp tester and the apex locator during assessments of pulp vitality and root length determination involves bacterial cross-contamination of the metal surfaces of the probe tip and lip clip inserts which contact the oral hard and soft tissues. Reuse of these endodontic aids necessitates the sterilization or disinfection of the metal insert or the acquisition of extra attachments. A barrier technique that protects the electric pulp tester probe tip and the apex locator lip clip from bacterial contamination and employs the principle of electric conductive bridging is presented.

Dental Pulp Test↗
PubMed1991

Clinical, radiographic, and histologic study of endodontic treatment failures.

One hundred fifty cases of endodontic treatment failures were studied clinically, radiographically, and histologically. Fifty-seven percent of the teeth were asymptomatic. Pain alone and/or associated with swelling was present in 21% of the teeth. There was no correlation between the size of periradicular rarefaction and the occurrence or severity of clinical signs and/or symptoms. Stainable bacteria were demonstrated in 69% of the teeth and were present mostly in the canal. The severity of periradicular inflammation was related to presence of stainable bacteria in the canal. Swelling and pain or a draining sinus tract was often associated with stainable bacteria inside the canal. The development of a radicular cyst associated with an endodontically treated tooth that has failed is not necessarily the cause of endodontic treatment failure.

Dental Pulp Cavity↗
PubMed1991

Histological study of furcation perforations treated with tricalcium phosphate, hydroxylapatite, amalgam, and Life.

One-hundred twenty experimental furcation perforations were created in the mandibular and maxillary premolars and molars of six rhesus monkeys. Tricalcium phosphate, hydroxylapatite, amalgam, and Life were used to repair the furcation perforations. The animals were sacrificed at the intervals of 2, 4, and 6 months after the experiment. Histological evaluation revealed lack of complete healing of furcation perforations repaired with any materials. Epithelium was present in the furcation perforations in both experimental and positive control groups. No hard tissue formation was observed in this study. Inflammation in the furcation area may be due to inadequate sealing ability of the repair materials.

Animals↗
PubMed1990

[Reattachment or new attachment in apical-marginal periodontal bone loss. A clinical-histological discussion].

Loss of marginal alveolar bone of the tooth can be caused by periodontal, pulpal-periapical, or a combined pulpal and periodontal disease. The regeneration is supported by the formation of reattachment or new attachment. Reattachment is probably the usual healing process in periapical surgery of the tooth with apicomarginal bone loss caused by pulpal-periapical disease. In animal experiments (rats, dogs) ist was well documented, that the cells which repopulate the periodontal wound adjacent to the root surface determine the nature of the attachment formed.

Animals↗
PubMed1987

Dens evaginatus: a case report.

A case of bilateral dens evaginatus is presented. The difficulty of clinical diagnosis and the limited value of pulp testing in cases of dens evaginatus are discussed.

Bicuspid↗
PubMedDate not supplied

Why teeth associated with inflammatory periapical lesions can have a vital response.

It is a general conception that teeth having an inflammatory periapical lesion are nonvital and the associated periapical lesions are not innervated. However, structurally intact and functioning nerve fibers have been shown to be present in the periapical lesion and/or the associated pulp. Therefore, when a patient presents with an endodontically involved tooth associated with a periapical lesion and experiences pain during canal instrumentation, the need for local anesthesia is apparent.

Dental Pulp↗