ASDC journal of dentistry for children最新文献

The objective of this study was to evaluate ongoing changes in contemporary pediatric dental practice. The impact of demographics, gender, generational values and debt load of the 1990s practitioner is reviewed. The role of overhead expenses, third party payers, business practices, dental management service organizations and business training of practitioners are analyzed. The influence of technological changes on clinical practice is described. In conclusion, there is a need for zero-basing and reconstructing pediatric dental practices.

An in vitro experiment was conducted to evaluate the shear bond strength of a conventional GIC (glass ionomer cement) and a RMGIC (resin modified glass ionomer cement) when applied to dentin of primary and permanent teeth. Results show that the bond strength of the RMGIC was more than thrice that of the conventional GIC. Fracture analysis showed that the bond failures were cohesive in the cement.

Coffin-Lowry syndrome was first described by Coffin in 1966 and later by Lowry in 1971. Several oral manifestations have been described previously. We report a case with additional information on the histology of prematurely exfoliated teeth.

The aim of this investigation was to evaluate the crypt formation and calcification of the maxillary and mandibular third molars according to age and gender on panoramic radiographs in a group of Turkish children. Four hundred panoramic radiographs of 188 female and 212 male dental patients, ages six to thirteen years, were examined by two observers. The interrater reliability was tested by Kappa statistics. The earliest age for maxillary third molar crypt formation was eight years; mandibular third molars could be seen radiographically as early as seven years.

A nonprofit private dental clinic provides free dental treatment for children up to the age of eighteen years. In order to expand its services to reach more children, a school-based sealant program using dental auxiliary personnel was organized. This paper evaluated the performance of the school-based program during 1991 by comparing the costs of the school-based program with the costs of the sealants placed in the clinic in twelve months. Costs were calculated based on 1991 expenditures, and effectiveness rates were estimated from dental literature on sealants. The cost of saving one tooth-surface from decaying within a six-year period at the school and the clinic was $65 and $42 with an average sealing time per tooth surface of 18 and 12.5 minutes, respectively. Despite the relatively lower cost of personnel, the school program cost was 35 percent higher than at the clinic. Nevertheless, if hidden costs, such as transportation, time off work, and waiting time for those attending the clinic were considered, costs could be comparable or even higher for the clinic. The main goal of this paper is to explore a methodology to compare programs of different nature, and critically evaluate the results.

Despite continuing need for dental services, the use of dental services has not increased uniformly throughout the population of children. Minority group children, children in families with other than two parents present, children in lower income families and families without insurance, and children with special needs, receive reduced levels of dental services than their counterparts in the general population.

A fifteen-year-old boy with osteogenesis imperfecta (OI) and dentinogenesis imperfecta also had a big cyst in the mandible and needed surgical therapy. Six months postoperatively we saw a complete regeneration of the bone-structures. We came to the conclusion that cysts which appear independently from the disease of OI can heal after surgical intervention.

The aim of the present clinical study was an in vivo evaluation of an improved conventional glass ionomer cement Ketac Molar (ESPE), compared to a polyacid modified composite resin, Dyract (Dentsply/De Trey), used in primary molars. Fifty-three Ketac Molar and fifty-two Dyract restorations were placed in box-only preparations in primary molars. The application time for the chemically cured Ketac Molar, was longer compared to the light-cured Dyract. In comparing the materials, no differences were found, comparing both materials regarding secondary caries, marginal adaptation, wear and fracture toughness. One case of recurrent caries adjacent to a Ketac Molar restoration and two cases in the Dyract group were reported. Two Ketac Molar restorations and one Dyract showed bulk fracture at the time of evaluation. At the twelve-month evaluation, no difference between the investigated materials was registered, which indicates that Ketac Molar can be used as a proximal restoration in the primary dentition. It should be emphasized, however, that one-year data should not be extrapolated to indicate the long-term success of restorations.