Clinical evaluation of four amalgam alloys: a five-year report.

In this study 96 teeth of 12 patients were restored with either the conventional alloy Premix, the blended non-gamma 2 amalgam Dispersalloy, or one of the spherical alloys Sybraloy and Tytin. To ascertain an objective comparison of the clinical performance of these alloys, two different alloys were used in each of at least two dental arch quadrants in the same patient and consequently were placed in the same oral environment. Clinical performance of the restorations was evaluated by macrophotography and scanning electron microphotography of replicas made after placement and 2, 3, and 5 years thereafter.

Mantle dentine in man--a quantitative microradiographic study.

50 microradiographs taken in a standardized manner of midsagittal ground sections of teeth of individuals aged 18 to 56 years were densitometrically evaluated along a track passing through enamel, dentine and an aluminium stepwedge. Semi-quantitative analysis of mineral density uniformly showed an irregular platform representing circumpulpal dentine and a peripheral down slope in the region of the amelodentinal junction, representing mantle dentine. The width of this less mineralized peripheral zone measured on densitometric recordings averaged 150 microns (+/- 50).

Ultrastructure (SEM) of dentine bridging in the human dental pulp.

This study was designed to investigate by SEM the ultrastructure of the dentinal bridge formed upon pulp capping and its attachment to the contiguous dentinal walls. The pulps of 20 sound premolars and third molars were deliberately exposed and capped with a calcium hydroxide paste, Pulpdent. After 4 to 15 weeks the teeth were extracted.

The adaptation in various languages of standardized periodontal terminology to recent acquisitions.

Before nomenclatorial translation can be begun, an approved definition of the term concerned is required, as is a systematic classification of related designations. Existing sources are bi- or multi-lingual dictionaries and glossaries but relatively few of these cover oral biology and dentistry in adequate detail. Much of the terminology developed for specialized fields of medicine is applicable to dentistry in general and periodontology in particular but the proliferation of new terms in English/American cannot always be matched appropriately in other languages.