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Biomedical subjects

A B Fuks

Publications and source records attributed to A B Fuks.

At least 55 records · Page 3Linked to original sources
PubMedDate not supplied

Occlusal disturbances resulting from neglected submerged primary molars.

Several studies indicated that submerged teeth have no long-term effect on occlusal development. Individual cases, however, may present extreme complications. Lack of close supervision, in such instances, may lead to serious consequences. Two cases of negligence (one on the parents' part and the other a consequence of the dentist's carelessness) are presented. The need for a close follow-up of submerged teeth is emphasized, and a rigid periodical recall schedule is suggested.

Ankylosis↗
PubMedDate not supplied

Two-year evaluation in vivo and in vitro of Class 2 composites.

Nineteen class 2 Herculite restorations were evaluated two years after placement. Nine of these were retrieved and examined by clinical inspection out of the mouth. Six of the restorations were then removed and the cavities examined for extent and location of discoloration and secondary caries. Radiolucent defects at the gingival margins were seen in 36% of the teeth. Gaps were evident in 58% of the gingival margins of the retrieved teeth. Secondary caries was diagnosed in four cases, all of them at the cervical margin. Examination of the cavities after removal of the composite resin demonstrated the penetration of the carious process into the dentin.

Child↗
PubMedDate not supplied

Assessment of a 2 percent buffered glutaraldehyde solution in pulpotomized primary teeth of schoolchildren.

This investigation was undertaken, clinically and radiographically, to assess the effect of glutaraldehyde as a pulp medicament in pulpotomized cariously exposed primary molars. Fifty-three primary molars of thirty-two second-grade children were evaluated after being treated by pulpotomy utilizing a 2 percent buffered glutaraldehyde solution. Failures were observed in 5.7 percent of the teeth at the six-month evaluation and increased with time: 9.6 percent after 12 months; and 18 percent after 25 months. Internal resorption was observed in six teeth; external resorption was found in only one tooth. Pulp canal obliteration, which was not listed as a failure, was observed in one tooth after 6 months, yielding a total of twenty teeth at the final examination. In thirty-eight pulpotomized teeth (82.6 percent), the resorption rate was similar to their antimeres; in another seven, root resorption was faster; and only one pulpotomized tooth resorbed more slowly than its antimere. The relatively high failure rate in the present study does not justify recommending a 2 percent buffered glutaraldehyde solution as a substitute to formocresol.

Child↗
PubMedDate not supplied

Marginal leakage of Class II glass-ionomer-silver restorations, with and without posterior composite coverage: an in vitro study.

The aims of this in vitro investigation were: 1) to assess marginal leakage around three types of class II restorations, using: a) a composite resin with a glass ionomer lining; b) a glass ionomer cerment with composite resin coverage; c) a glass ionomer cermet without composite resin coverage and 2) to study the effect of thermocycling on marginal defects, by means of radiographs and SEM micrographs of the margins. Fifty-eight class II cavities were prepared in extracted primary molars. The teeth were divided into three groups and restored as follows: Group A--Ketac Bond (liner) and P-30; Group B--Ketac Silver and P-30(sandwich); Group C--Ketac Silver only. The restored teeth were thermocycled and marginal leakage was assessed from the degree of dye penetration on the sections. Dye penetration at the occlusal margins increased in the sequence A less than B less than C. The differences between group C and Groups A and B were statistically significant. Severe penetration of the dye was observed at the cervical margins with no statistically differences between the groups. Deterioration of margins due to thermocycling was observed for all groups, but these defects were not evident on the radiographs. Ketac Silver with and without composite coverage did not prevent marginal leakage when utilized in class II restorations in vitro.

Cermet Cements↗
PubMedDate not supplied

Assessment of marginal leakage of class II amalgam-sealant restorations.

This study addresses the question of whether conservative methods of restoration may be applied efficaciously in permanent posterior teeth with proximal lesions and intact occlusal sealants. It evaluates the effect of in vivo experimental conditions on micro-leakage, using primary molars in this study, for information applicable to permanent molars.

Child↗
PubMedDate not supplied

In vitro assessment of the effect of Scotchbond on the marginal leakage of class II composite restorations in primary molars.

By means of dye penetration, the authors determined the microleakage at the interface of class II composite restorations in thirty-eight extracted or naturally exfoliated primary molars. Scotchbond was used as the bonding agent in half of the prepared cavities' dentin and enamel; the control group (B) used Concise bonding agent in the enamel only. The use of Scotchbond in class II cavities did not prevent marginal leakage under the conditions of this study.

Adhesives↗
PubMedDate not supplied

Comprehensive dental treatment under general anesthesia for patients with homocystinuria.

Continued investigation in genetic biology has helped the medical profession to prevent complications in patients with this defect. Moreover, early diagnosis and treatment are recommended, in order to prevent mental retardation and visual deterioration. Refinement of techniques concerning preparation of the patient for general anesthesia and postoperative care merit further investigation. Simple measures undertaken in the two patients described made the completion of dental treatment possible without serious complications.

Adolescent↗
PubMedDate not supplied

Assessment of two doses of intranasal midazolam for sedation of young pediatric dental patients.

The purpose of this study was to assess the effectiveness of two doses of intranasal midazolam on sedation of young children for dental treatment. Thirty uncooperative children, mean age of 32 months, who needed at least two restorative visits, participated in this study. The patients were assigned randomly to receive either 0.2 mg/kg or 0.3 mg/kg of midazolam intranasally, with the alternate regimen administered at the second appointment. All the children received 50% nitrous oxide, and were restrained in a Papoose Board (Olympic Medical Group, Seattle, WA) with a head holder. Degree of alertness, crying, and movement were evaluated at baseline and at 5-min intervals throughout the procedure. Evaluation of overall behavior at each session was performed by one investigator, blind to the dose, using a separate rating scale. The reliability of ratings was assessed by two investigators from videotapes of the procedures. Statistical analysis showed no differences (P > 0.05) in the behavior of the children receiving the two doses. Successful sedation, as assessed by lack of or minimal crying and/or movement that interrupted treatment, was observed in all the treatment visits with both doses (mean score 4.66 +/- 1.09 for 0.3 mg and 4.40 +/- 1.04 for 0.2 mg). No adverse effects were observed, and all the treatments were completed successfully.

Administration, Intranasal↗
PubMedDate not supplied

A comparison of pulpectomies using ZOE and KRI paste in primary molars: a retrospective study.

Maintaining a successfully root-treated primary molar has the advantage of preserving the natural tooth--the best possible space maintainer. The purpose of this study was to compare the success of endodontic treatment of nonvital primary molars using ZOE with that of KRI paste. Of 78 necrotic primary molars, 34 were filled with ZOE and 44 with an iodoform-containing paste (KRI). The canals were prepared with files, rinsed with saline and filled with one of the resorbable pastes, using a spiral Lentulo on a low-speed handpiece. A radiograph was exposed immediately postoperatively to observe whether the root filling was flush, underfilled, or overfilled. The effect of length of fill on the treatment outcome also was evaluated. Teeth were examined periodically clinically and radiographically to assess success of the treatment. Follow-up interval varied from 12 to more than 48 months. Overall success rate for KRI paste was 84% versus 65% for ZOE, which was statistically significant (P < 0.05). Overfilling with ZOE led to a failure rate of 59% as opposed to 21% for KRI (P < 0.02). Conversely, underfilling led to similar results, with a failure rate of 17% for ZOE and 14% for KRI. These results support the clinical efficacy of root filling with KRI paste as a treatment option for nonvital primary molars.

Camphor↗
PubMedDate not supplied

Long-term followup of traumatized incisors treated by partial pulpotomy.

The purpose of this study was to assess the long-term success of partial pulpotomy in traumatized permanent incisors. Seven years before this examination, 63 teeth that had been treated by partial pulpotomy six months to four years earlier were examined. At that stage, four teeth had pulp necrosis. The remaining 59 cases were recalled for re-examination. Of these, 40 were available for assessment 7.5 to 11 years after the partial pulpotomy treatment. Thirty-five of these teeth were successful, while the remaining five had root canal fillings, and three of them were restored by post and crowns. Of these, two were root treated in consequence of new trauma, and the other two for esthetic purposes. The fifth tooth has probably been root treated for similar reasons, as the patient reported not having had any pain or problem with the tooth. The high frequency of long-term success justifies recommending partial pulpotomy as the treatment of choice for traumatic pulp exposures in crown-fractured permanent incisors.

Dental Pulp Exposure↗