[The Berlin crown--a study from the prosthetic and periodontologic point of view].

The present study deals with the assessment of 112 Berlin crowns from the viewpoints of prosthodontics and periodontics. In the anterior region, porcelain-plastic jacket crowns offer the advantage of optimal esthetic achievement. In the cervical and palatine regions, the Berlin crown has no advantage over the plastic jacket crown. The confection of the Berlin crown requires exact preparation of the plastic portion and anatomical reproduction of the crowned tooth. Reactions of the periodontium to crowning were observed only in case of faulty technique.