Biomedical subjects
Publications and source records attributed to H J de Kloet.
Air abrasive technology has re-emerged in dentistry. The history, characteristics and clinical application of this approach are reviewed, including advantages and limitations for the removal of enamel, dentin and decay. Air-abrasive technology may be especially suited for use in bonded restorations as well as for repair of all types of restorations. The factors affecting adequate bond strength are discussed.
Large direct composite restorations can induce shrinkage related postoperative sensitivity. Indirect resin-bonded (tooth colored) restorations may perhaps prevent these complaints. Indirect bonded ceramics are especially attractive because of their biocompatibility and esthetic performance. Several procedures and techniques are currently available for the fabrication of ceramic restorations: firing, casting, heat-pressing and milling. In this article the different systems are described. Advantages, disadvantages and clinical performance of ceramic inlays are compared and discussed.
An adhesive or resin-bonded bridge is a tooth saving construction for the replacement of a lost tooth, especially when the abutment teeth are relatively sound. In this article an overview is presented of the different types of resin-bonded bridges, their advantages and disadvantages and their indications. The direct methods are very suited for the immediate replacement of a lost anterior tooth. The all composite adhesive bridge has a survival rate that is surprisingly good.
By means of adhesive dentistry sound teeth can be made more beautiful without damaging tooth structure. This is called cosmetic dentistry. Within the dental profession there is a discussion about the following questions: is cosmetic dentistry real dentistry? Is it ethical to render cosmetic services to patients? In this article arguments are displayed to answer this question in a positive manner.
Communication between the dentist and his patient is an absolute condition for successful cosmetic dentistry. The patient must have possibilities to explain his wishes and expectations to the dentist (and if an indirect technique is used, to the dental laboratory). In this article methods are described and hints are given to arrange this in dental practice.
Due to continuing alterations in composition of dental products and materials, prognoses about longevity of restorations in composite or etched porcelain are extremely difficult to make. Strength, wear resistance and resistance against disintegration determine durability of stress bearing restorations. Elasticity in combination with bond strength are determinant for prevention against premature leakage. Indication, cavity form and careful handling of the materials are prerequisites for longevity of the restoration. The prognosis of the favourably located but stress bearing class IV is far better than that of the unfavourable located, non stress bearing class V-composite restoration. For the etched porcelains, the veneers offer the best perspectives with respect to durability thanks to the favourable shrinkage pattern.
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