Radiographic study was performed to assess the results of the prosthetic therapy of teeth restored with porcelain and gold veneered crowns. Retroalveolar radiographs were used to evaluate the cast post-core-root ratio the presence of empty spaces between post-core and root canal filling. Also, bone resorption, marginal fit of the crowns, caries and proximal contacts were investigated. The failures were registered in a very high percentage for the teeth restored with gold veneered crowns. The poor marginal fit of the crowns, the presence of the secondary caries, and the bone resorption were at a very high level which could alarm the practitioner. The obtained results warn therapists that much greater attention should be paid to the construction of artificial crowns and to the radiographic analysis that gives very useful data on that regard.

Alveolar Bone Loss↗

PubMedDate not supplied

[Microbiological investigation of supragingival dental plaque in patients treated with porcelain jacket and gold veneered resin crowns].

The majority of periodontologists agree that the primary aetiological factor of periodontal disease is dental plaque. The purpose of the study was to investigate the accumulation of dental plaque on the with porcelain jackets and gold veneered resin crowns, and to correlate these findings with the data obtained on the uncrowned control teeth in the same patients. The qualitative analysis of microorganisms in dental plaque did not show a great difference between porcelain jacket and gold veneered resin crowns. However, a high difference was found in the quantitative accumulation of microorganisms in the mature dental plaque (considerably less on porcelain jacket crowns). These findings indicate that dental porcelain is less susceptible to accumulation of bacterial plaque in comparation to resin and even to hard tooth structures.

Composite Resins↗

PubMedDate not supplied