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Biomedical subjects

A B Fuks

Publications and source records attributed to A B Fuks.

At least 19 recordsLinked to original sources
PubMed2006

Pulpotomy in primary teeth: review of the literature according to standardized criteria.

AIM: To assess the relevant literature using a modification of the criteria listed in the introductory paper to this issue [Curzon and Toumba, 2006], and to review several new publications on pulpotomies with different materials and techniques that appeared after previously published reviews. METHODS: A search of the literature on pulpotomies was identified using Medline between the years 1966-2005. The search generated 358 citations and sieving of these papers was conducted by examining the paper title and assessing its relevance [Loh et al., 2004]. Only clinical studies (non-specified) and retrospective studies were included for assessment. There were 17 criteria (considered major) weighed 2 points and 8 criteria weighed 1 point. A paper that would score between 38-42 points (90+ %) was assessed as Grade A, a score from 32 to 37 points (75-89%) was Grade B1, and between 25 to 31 points (60-74%) Graded B2. All other papers that reached 24 points or less (less than 59%) was rated Grade C. RESULTS: Of the 358 papers originally identified 48 clinical trials were evaluated according to the set of criteria. There was only one paper graded A, 5 papers graded B1, 3 graded B2 and 39 received a grade C. Formocresol or ferric sulphate medicaments were found to be likely to have similar clinical/radiographic results, and MTA seemed to be a more favourable pulp dressing. CONCLUSION: No conclusion can be made as to the optimum treatment or technique for pulpally involved primary teeth. More high quality, properly planned prospective studies are necessary to clarify these points.

Bibliometrics↗
PubMed2006

Clinical performance of resin-bonded composite strip crowns in primary incisors: a retrospective study.

AIM: The purpose of this study was to assess retrospectively the longevity of resin-bonded composite strip crowns placed in primary maxillary incisors. DESIGN: Records for 200 out of 387 children, aged 22-48 months, treated in a private paediatric dental practice and who presented for follow-up after at least 24 months were included in the study. The parameters recorded at baseline and/or at follow-up were: habits, the number and location of the decayed surfaces, colour, texture, and chipping of the restoration. Radiographic evaluation of the restorations, the quality of the margins, and the presence of pulpal and/or periapical pathoses were recorded. RESULTS: More than 80% of the restorations were judged to be successful at the final follow-up examination. Only the number of carious surfaces of the tooth at baseline influenced the treatment outcome. The failure rate was higher in central incisors with four affected surfaces (P = 0.005), and in lateral incisors with four carious surfaces (P = 0.0003), than in those presenting one or two carious surfaces in both central and lateral incisors (P = 0.002). CONCLUSION: The high success rate of resin-bonded composite strip crowns with a 2-year follow-up seen in this study suggests that this treatment modality is an aesthetic and satisfactory means of restoring carious primary incisors in young children. The retention rate is lower in teeth with decay in three or more surfaces, particularly in children with a high caries risk.

Child, Preschool↗
PubMed2005

Clinical performance of a non-rinse conditioning sealant in three paediatric dental practices: a retrospective study.

The present clinical retrospective study describes the retention rates of a compomer sealant (Dyract Seal, Dentsply-De Trey, Germany) with non-rinse conditioning (NRC) placed in three paediatric dentistry practices. Three hundred and seventeen sealants were applied in 220 primary and 97 permanent molars of 176 children aged 2.5-13 years. The tooth surface was freshened with a #1/2 round bur mounted on a slow speed engine, and isolated with cotton rolls. Application of the NRC and Dyract Seal followed the manufacturer's instructions. Sealant retention was classified as A (fully retained), B (partially lost) or C (completely missing). From a total of 220 sealants placed in primary molars, 38 were in the mouth between 12 and 18 months, 29 functioned between 19 and 24 months and 46 were followed up between 25 and 36 months. One hundred and thirteen (51%) were fully retained (A), 73 (33%) scored B (27 for 12-18 months; 20 for 19-24 months, 26 for 25-36 months) and 34 (16%) were lost and scored C (12 for 12-18 months; 12 for 19-24 months; 10 for 25-36 months). From a total of 97 sealed permanent molars, 45 (46%) were fully retained (score A). Of these, 25 were followed up for 12-18 months, 10 for 19-24 months and 10 for 25-36 months. Thirty-eight sealed permanent molars (19%) scored B [17 for 12-18 months, 10 for 19-24 months and seven for 25-36 months and 14 (15%) were completely lost (score C: 6 for 12-18 months, seven for 19-24 months and two for 25-36 months)]. Dyract Seal has a lower retention rate than conventional sealants. It may be appropriate for sealing primary molars of very young children for a limited period of time and for permanent molars of children with pronounced gag reflex, where rinsing can become a problem and lead to disruptive behaviour.

Acid Etching, Dental↗
PubMed2002

Reliability of different techniques to assess marginal defects of Class II restorations in retrieved primary molars: a visual-tactile, SEM, dye penetration and polarized light microscopy study.

The aims of the present article were to assess the reliability of different techniques to assess marginal defects in Class II restorations in retrieved primary molars, and to determine the degree of agreement between the various assessment modalities. The material evaluated was comprised of 18 exfoliated primary molars that had been restored 20 to 22 months previously with a resin-modified glass ionomer (Vitremer--7 teeth), a hybridized composite resin (Z100 + Scotchbond Multipurpose--9 teeth), and amalgam (Dispersalloy--2 teeth). No significant differences could be observed between the groups. The majority of the restorations rated A at the buccal and lingual margins, but poor adaptation was disclosed at the cervical margin of the three types of restorations. SEM evaluation revealed that the highest percentage of defects was seen at the cervical margins with no statistically significant difference between the groups. No or minimal leakage was present at the occlusal margins and severe penetration of dye was seen at the cervical margins in all groups. Significantly less demineralization was seen adjacent to the Vitremer and Z100 restorations when compared to the Dispersalloy but no difference was found between the esthetic restorations. Except for the visual tactile examination, small marginal defects could be disclosed by the three assessment techniques (SEM, dye penetration, and polarized light microscopy). A good degree of agreement was observed between the three evaluation techniques.

Child↗
PubMed2002

Current concepts in vital primary pulp therapy.

REVIEW: Recent progress in understanding the molecular and cellular changes during tooth development and how they are mimicked during tissue repair, offers the opportunity to assess the biologic validity of the various vital pulp treatments. Under this light, indirect pulp treatment can be an acceptable procedure for primary teeth with reversible pulp inflammation, provided that this diagnosis is based on a good history, a proper clinical and radiographic examination, and the tooth had been sealed with a leakage-free restoration. Several articles report the success of this technique of direct pulp capping (DPC) and calcium hydroxide has been widely used with high success rates in young permanent teeth, but the results in primary teeth are less satisfactory. Recent studies have reported successful results with direct adhesive capping of exposed pulps, while others showed pulp inflammation and unacceptable results using this technique. Thus, the traditional rationale for the use of calcium hydroxide should be maintained, and this treatment modality reserved for iatrogenic exposures in asymptomatic teeth that are expected to exfoliate within a short period of time. In younger children, iatrogenic or carious exposures should be treated by pulpotomy. Formocresol has been the most popular pulp dressing material for pulpotomized primary molars for many years but, due to its deleterious effect, the use of formocresol is decreasing considerably worldwide. Ferric sulphate has been proposed as a substitute to formocresol, and the success rates were comparable to those of formocresol. More recently, considerably better results have been obtained with MTA (Mineral Trioxide Aggregate), and statistically significant differences were reported when compared with formocresol. Internal root resorption, a finding seen both in ferric sulphate and formocresol, was not observed in the MTA treated teeth. MTA is commercially available, but its cost is very high, and cannot be kept once opened. Thus, ferric sulphate can still be a valid and inexpensive solution for pulpotomies in primary teeth.

Journal Article↗
PubMed2000

Pulp therapy for the primary and young permanent dentitions.

This article describes the pulp reactions to caries and operative procedures and emphasizes the importance of a clinical diagnosis to evaluate the most appropriate pulp treatment. Conservative and radical treatments are described, stressing the differences between primary and young permanent dentitions.

Child↗
PubMed1997

Follow up after root canal treatment of young permanent molars.

The purpose of the present study was to assess the success of root canal treatment in permanent molars of children and adolescents. Twenty-eight endodontically treated first permanent molars of 18 patients aged 8 to 16 years at the time of treatment were examined. The age of the patient at the time of treatment ranged from 8 to 16 years (mean age 12.4 +/- 2.3). The majority of the treatments were done on the mandibular teeth (67%). Nine patients had one treated molar, eight patients had two treated molars and one patient had three treated teeth. None of the patients had all four molars treated. The time elapsed from the root canal treatment until our examination ranged from 24 months to 77 months (mean time 45.1 +/- 19.1). The examination included clinical and radiological parameters as follows: sensitivity to percussion, mobility, quality of restoration (contact point reproduced, overhang, secondary caries), periapical lesions before and after treatment, external root resorption, furcation involvement and interproximal bone resorption. Treatment was considered completely successful if no pathology was found. Only 10 teeth (36%) demonstrated complete treatment success, less than previously reported. No significant differences between mandibular and maxillary teeth were found with respect to any of the variables. The results suggest that considering a number of multidisciplinary criteria for assessing success of root canal treatments in first permanent molars of children and young adolescents is essential, and provides a realistic success rate.

Adolescent↗
PubMed1993

The influence of social and ethnic factors on dental care habits and dental anxiety: a study in Israel.

The purpose of the present study was to assess the influence of social and ethnic factors on dental care habits and dental anxiety in a group of children resident in Jerusalem, Israel. Four hundred and fifty-six children completed a questionnaire that included 21 questions: nine referred to socio-demographic variables, three concerned the children's dental care habits, and the remaining nine concerned dental anxiety. Social level was determined by the father's occupation and their area of residence. Ethnic background was established according to the mother's or grandmother's country of origin. Chi-squared tests revealed no significant differences between social class or ethnic origin and dental care habits or dental anxiety. Analysis of variance, however, revealed a significant difference between the anxiety reported by boys of the two ethnic groups studied. Dental care habits were good in the majority of the children of all backgrounds, and the level of dental anxiety was low in all groups. It was concluded that ethnic origin had an influence on dental anxiety only in boys, whereas ethnic origin and social class had no influence on dental care habits.

Analysis of Variance↗
PubMed1992

Effect of root canal infection and treatment of traumatized primary incisors on their permanent successors.

The purpose of the present retrospective study was to evaluate the effect of trauma, root canal infection and treatment of non-vital primary incisors on their permanent successors. A total of 117 permanent central incisors were examined clinically and radiographically for the presence of discolorations, hypoplasia, or disturbances in root development. Of these, 29 were succedaneous to traumatized, endodontically involved and treated primary incisors (Group A). Another 29 had their traumatized, endodontically involved, primary predecessors extracted or left untreated (Group B). The remaining 59 incisors were intact and had no history of trauma (Group C). Severe hypoplasia could not be observed in any of the teeth, and no disturbances in root development could be disclosed radiographically. The incidence of defects in Groups B and C was similar, whereas in Group A it was 2 or 3 times higher than in each of the other two groups. Despite this fact, root canal treatment of traumatized non-vital primary incisors should be considered a treatment option, as premature extraction of a primary incisor may lead to speech problems, premature eruption and/or malalignment of the permanent successor, or affect the child's self image.

Chi-Square Distribution↗
PubMed1991

Pulp therapy in the primary dentition.

Several treatment options for pulp therapy in primary teeth are reviewed. Conservative treatments are recommended for primary teeth whose pulps have the potential to recover once the irritation has been removed. The role of dentin permeability and microleakage is emphasized when protective basis and indirect pulp treatment are discussed. Alternative dressings for formocresol pulpotomies such as 6.25% glutaraldehyde solution, antigen-extracted allogeneic dentin matrix, and crude bone morphogenetic protein are reported with promising results. Pulpectomy is recommended for teeth with evidence of chronic inflammation involving radicular pulp or pulp necrosis with and without periapical involvement. The main disadvantage of zinc oxide-eugenol paste, widely used for primary root fillings in the United States, is its slow resorption rate, frequently much slower than that of the root. Other root canal pastes containing iodoform, or a modification of this with the addition of calcium hydroxide, are being utilized in South America, Japan, and Europe.

Child, Preschool↗
PubMed1990

Pulp response to a composite resin inserted in deep cavities with and without a surface seal.

The objective of the present investigation was to observe pulp response to a composite material (Occlusin) placed in deep cavities with and without a zinc oxide-eugenol covering. Deep cavities were prepared in 116 teeth of four young baboons and divided into four groups. In group 1, Occlusin material was placed directly into the cavity, without etching, to approximately half the depth, cured, and covered to the surface with zinc oxide-eugenol. In group 2, the cavities were etched, a bonding agent was applied, and Occlusin material was used and cured in two increments to fill the cavities up to the surface. In group 3, the composite resin was placed in two increments as in group 2, but without etching and bonding; and in group 4 (control), the cavities were filled up to the surface with zinc oxide-eugenol. Follow-up times were 5, 30, and 90 days. Light microscopy revealed that, although some differences were observed, a good pulp response was evident in all groups.

Acid Etching, Dental↗
PubMed1990

Assessment of marginal leakage around Class II composite restorations in retrieved primary molars.

The aim of the present investigation was to evaluate, by means of dye penetration, the microleakage around Class II composite restorations, in retrieved primary molars that functioned in the mouth for at least one year. The experimental material consisted of 13 exfoliated primary molars that had been restored with Herculite (Kerr Corporation, Romulus, Michigan 48174 USA) at least one year previously, utilizing an incremental or a bulk filling technique. The retrieved teeth were insulated with utility wax and nail polish, immersed in 2% basic fuchsin, embedded in acrylic resin, and ground off to various depths. The marginal leakage was assessed according the degree of dye penetration at the occlusal and cervical margins. No difference was observed between the two filling techniques. In most teeth, no leakage at the occlusal margins was observed; minimal leakage, limited to the enamel, was observed at the occlusal margins of two teeth, one of each filling technique. Severe penetration was evident at the cervical margin of three restorations, two of them filled incrementally and the third using the bulk technique. Mild to moderate penetration was observed at the cervical margin in the majority of the other restorations. It was concluded that an incremental filling technique could not eliminate microleakage at the cervical margins of Class II composite restorations.

Child↗