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Biomedical subjects

H Gerstein

Publications and source records attributed to H Gerstein.

At least 19 recordsLinked to original sources
PubMed1989

Effects of two hemostatic agents on osseous healing.

The effects of Adaptic and Avitene on bone healing were evaluated histologically. The studied materials were placed in osseous defects created in rat tibias with a #8 round bur in a slow-speed handpiece. The materials were left in situ for experimental periods of 7, 14, 28, 60, 90, and 120 days. Histological evaluation of specimens from each of these periods demonstrated that Avitene was resorbed and did not impede bone healing. Adaptic was not resorbed at the end of the longest experimental period, 120 days. This material caused a foreign body reaction characterized by encapsulation of the Adaptic by fibrous connective tissues. Both Adaptic and Avitene were satisfactory hemostatic agents. The results of this study suggest that Adaptic should be used only in those situations where complete retrieval of the material from surgical sites can be assured.

Animals↗
PubMed1985

Electrochemical corrosion in the failure of apical amalgam. Report of two cases.

Apicoectomy with retrograde amalgam is an accepted procedure for treating teeth that cannot be treated by nonsurgical methods. Some of these fail to heal for no apparent reason. Evidence is presented that indicates that some of these failures are caused by corrosion of the apical amalgam. Two cases are described in which the sinus tract that was associated with the failing retrograde amalgam was resolved without further surgery. To bring about the resolution, a zinc-enriched amalgam was placed in the crown that through an intervening conductor, reduced the rate of corrosion at the apex.

Adult↗
PubMed1979

Endodontic perforations which resulted in alveolar bone loss. Report of five cases.

Five cases in which perforations of mandibular molars into the furca occurred during endodontic instrumentation of the canal are presented. This resulted in alveolar bone loss. All were relatively asymptomatic, which could present a problem in diagnosis of the periodontal defect. The prognosis is questionable. The only tooth retained was treated surgically by an apically positioned flap and opening of the furca area to make it accessible to cleansing. The best treatment is the avoidance of the perforation. This is accomplished by considering the configuration of the canals and the size of the reamer than can follow it. Overinstrumentation with an endodontic instrument that is too large in diameter should be avoided.

Adult↗