[Effect of clinical and laboratory management in preparation of combined crowns faced with porcelain on the state of periodontal soft tissues]. / Wplyw postepowania klinicznego i laboratoryjnego przy wykonywaniu koron zlozonych licowanych porcelana na zachowanie sie miekkich tkanek przyzebia.

The effect of clinical management and laboratory procedures during preparation of porcelain-faced combined crowns is discussed. Attention is called to proper grinding of dental surfaces, with particular reference to the area near the gingiva. The result of the treatment with porcelain-faced crowns depended not only on the clinical management but also on a proper shape of the metal part of the crown and proper laying and baking of porcelain. This procedure should be done strictly according to the instruction of the producer.