Correction of a mandibular asymmetry using a custom-made titanium onlay.

The diagnosis and treatment of facial deformities, including mandibular asymmetries, can pose a significant clinical problem. The limitations, accuracy and predictability of treatment options available and the expectations of the patient can further compound this. In this article we present a case of facial asymmetry secondary to mandibular angle deficiency corrected by the manufacture and placement of a custom-made titanium onlay.

Comparison of convergence angles achieved in posterior teeth prepared for full veneer crowns.

This study compares the convergence angle of preparations for posterior gold crowns made by fourth/ fifth year undergraduate dental students, clinical teaching staff and general dental practitioners. Sixty dies were cast from impressions previously taken of clinical preparations by clinicians within each of the four groups. Each die was trimmed and sectioned in both mesio-distal and bucco-lingual planes before being projected using an overhead projector, thereby enabling the convergence angle silhouette to be measured.

Clinical evaluation of the stain removing ability of a whitening dentifrice and stain controlling system.

Objectives: This study aimed to evaluate the stain removing/controlling properties of a whitening dentifrice and a stain controlling system, in a parallel group, multiple use study.

Methods: Subjects (63), were stratified according to baseline stain scores and randomly allocated to a group, A (standard dentifrice), B (whitening/stain removing dentifrice) or C (whitening/stain removing dentifrice, tooth polish, tooth polisher and whitening/stain removing mouthwash). At each attendance, extrinsic stain was scored blind by a trained and calibrated examiner using the Shaw and Murray Stain Index, under constant lighting conditions.

Glass/ceramic/refractory techniques, their development and introduction into dentistry: A historical literature review.

This review considered the development of glass, ceramic, refractory materials, and techniques over a period of 25,000 years, from the time of stone-age man to their introduction into dentistry. Currently a wide variety of all-ceramic dental restorations are provided using alumina-reinforced, leucite-forming, and novel glass and ceramic materials along with a range of refractory materials and associated techniques. However, some of the problems of dimensional and thermal change experienced by early craftsmen still persist during current laboratory fabrication techniques.