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Biomedical subjects

W F Stroner

Publications and source records attributed to W F Stroner.

8 recordsLinked to original sources

Survey at urban college indicates compliance.

While the emergence of AIDS and associated barrier controls has impacted on dental practice, little inquiry has been undertaken to explore changes in clinical teaching. The purpose of this study was 1) to determine if any changes in teaching behavior have occurred, and 2) to explore attitudes of clinical faculty concerning controls. A questionnaire was sent to all clinical faculty at an urban college of dentistry. Most faculty reported being aware of and complying with control protocols. Although the majority of respondents (62 percent) reported spending the same amount of time with students and patients before and after barrier controls, a substantial number reported spending more time with students and patients implementing control techniques and less time in physical contact with patients and demonstrating dental procedures. The majority of the faculty felt the college's barrier controls were about right, although some recommended specific additions and deletions. Attitudinal responses were quite varied and often emotional, ranging from "No matter what we do, it can never be enough" to "It's ridiculous."

Acquired Immunodeficiency Syndrome↗

Twelve-year follow-up of a replanted incisor.

A case report with a 12-yr follow-up of a replanted maxillary incisor is presented. A maxillary incisor, #8, with incomplete root formation was replanted without splinting following a 2-h sojourn in salt water. The pulp responded positively to the electric pulp tester for 2 yr. There was no response to the electric pulp tester 5 yr postoperatively. Although there was some external root resorption, the root appeared to have reached normal length. Two parallel vertical radiolucent slits were present in a trabeculated substance in the site normally occupied by the pulp. This case illustrates an example of revascularization and pulp obliteration. Interestingly, at the 12-yr follow-up, the replanted tooth, as well as tooth 7, showed blunted apices that occurred following orthodontic tooth movement.

Child↗

Inflammatory resorption: untreated, arrested, prevented.

Three human replantation cases are presented wherein the results are in accord with the literature concerning inflammatory resorption and calcium hydroxide therapy. The cases unintentionally simulate a designed experiment wherein the control case received no treatment and the other 2 were subjected to independent variables such as obturation in the hand and the timing of the calcium hydroxide therapy. The untreated case resulted in loss of the tooth, while manipulation of variables in the other two resulted in retention.

Adolescent↗

Mandibular first molar with three distal canals.

A mandibular molar requiring root canal therapy was found with five canals, a mesial root, and two distal roots. The distobuccal root had two separate canals, and the distolingual root had but one. The bizarre aspects of this case are somewhat lessened because of the presence of the second distal root. Practitioners should not become excessively alarmed by the increasing reports of bizarre pulpal anatomy. However, knowledge of their existence may occasionally enable them to treat a case successfully that otherwise might have ended in failure.

Adolescent↗

Maxillary molars demonstrating more than one palatal root canal.

Maxillary molars exhibit variations in the canal morphology of the palatal root. Systems may occur in which a single palatal root contains two separate orifices, two separate canals, and two separate foramina. Other maxillary molars may have two separate palatal roots, each with one orifice, one canal, and one foramen. Another variation is one palatal root, one orifice, a bifurcated canal, and two foramina. The practitioner should be aware of variations in the canal system of the palatal roots of maxillary molars so that they can be treated more effectively.

Adult↗

Replantation of a mandibular molar: report of case.

A patient with an alveolar abscess, swelling, pain, and an extremely mobile tooth had had previous root canal treatment. Extraction was recommended but, with informed consent and the patient's desire to keep his tooth, intentional replantation was performed as a last resort. Matsura's method of canal preparation, which results in a large area of amalgam on the root surface, was used. This method did not impair healing. According to Bjorvatn and Massler, 11 application of 1% SNF2 to the root surfaces for five minutes reduces root resorption. This technique was not used in this case. Clinical and radiographic observation for almost four years substantiate this as a successful case.

Adult↗