Private practice and other systems of dental care: must they compete?
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In a series of postgraduate courses in Cariology for dentists in the period 1980-84, a total of 102 private practitioners participated in a study of the reasons for replacing amalgam restorations. Twelve reasons were specified on a form and the dentist was asked to mark one or more of them for each filling replaced. The total number of fillings evaluated was 2033. In 87.9% of the restorations only one reason was given for the replacement; two, three, four and five reasons were registered in 10.5, 1.1, 0.4 and 0.1%, respectively. The six most frequent reasons were: "secondary caries" (34.0%), "fracture of the filling" (15.5%), "primary caries" (12.1%), "fracture of the tooth" (10.2%), "marginal ditching" (7.2%), and "caries under the filling" (5.6%). The restorations replaced for a combination of two reasons (N = 213) were studied separately. The three most frequent combinations were: "secondary caries + fracture of the filling" (17.8%), "secondary caries + marginal ditching" (14.1%), and "secondary caries + caries under the filling" (11.3%). - Thus, the main conclusion from this study is that approximately half of the replacements of class II amalgam restorations were occasioned by caries disease.
Of 203 consecutive major depressed outpatients in a private setting, 45% had bipolar II disorder, 51% had unipolar depression, and 4% had bipolar I disorder. The observed prevalence of bipolar II disorder was higher then previously reported in clinical samples (10-40%). Bipolar II disorder had age at baseline and onset lower than unipolar depression, and more atypical features. Other variables (baseline depression severity, number of depressive episodes, psychosis, chronicity, comorbidity) were similar, suggesting that the depressive phase of bipolar II disorder differs only in one, but important, dimension (atypical features) from unipolar depression in a private setting.
A survey of 150 LSUSD alumni from the 1977 to 1981 classes was conducted. The questions dealt with type of practice and complete denture techniques. Results of the survey showed significant differences between the prosthodontic techniques the students were taught and the ones they used in practice. An analysis of the responses was made, and the type of prosthodontic procedures taught and practiced as well as the function of the prosthodontic instruction were discussed.
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