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At least 271 records · Page 15Linked to original sources
PubMed1996

Maxillary arch and central incisor dimensions of an ethnic Chinese population in relation to complete denture prosthodontics.

In the absence of pre-extraction records, investigators have used various methods to aid in the selection and placement of artificial teeth for complete dentures. Natural tooth position and size provide the dentist with an optimal guide. A study was conducted on a group of ethnic Chinese subjects where direct measurements were made of the arch size and width of the maxillary central incisor on stone casts. The anterior arch width represented by the inter-canine cusp tip distance was 35.74 +/- 2.17mm. The mesiodistal diameter of the maxillary central incisor was 8.85 +/- 0.59mm with a range of 7.60mm to 11.20mm. The results of this study was discussed against other findings on the Caucasian, Nigerian and Malay groups. The significance of artificial tooth selection for dentures was highlighted in relation to the results obtained from the study for the group of Chinese and other races.

Adolescent↗
PubMed2000

A simplified approach to optimizing denture stability with lingualized occlusion.

Occlusal prematurities are destructive and destabilizing influences in complete dentures. Unless denture bases are adequately and evenly stabilized, it is virtually impossible to properly equilibrate the occlusion. One reason is that all artificial teeth in a denture unit are physically bound into a single denture base and literally act as a single tooth. Therefore, a single point of occlusal prematurity disrupts the entire denture occlusion and negatively affects the denture base stability and retention, preventing proper equilibration. This article describes a step-by-step approach using an intraoral central bearing point tracing device and lingualized occlusion to achieve an effective and simplified equilibration.

Bite Force↗
PubMed2001

Biological guides to the positioning of the artificial teeth in complete dentures.

Setting teeth for complete dentures is traditionally done away from the clinic in the dental laboratory. This has unwittingly given the impression that arranging tooth position is a mechanical process in which the clinician has little say. Many technicians are given few instructions, but a detailed prescription is crucial to the success of the denture. This article describes those considerations the dentist should address in communicating with the laboratory technician. A 'denture space' impression technique is described to assist the dentist in the correct prescription for posterior teeth placement.

Cephalometry↗
PubMedDate not supplied

Shock absorbability and hardness of commercially available denture teeth.

PURPOSE: Composite resin teeth are more widely used than porcelain or acrylic resin teeth in the fabrication of removable dentures because of their high fracture toughness and high abrasion resistance. The purpose of this study was to evaluate the shock absorbability of commercially available artificial posterior teeth by the free drop-ball test with an accelerometer and to evaluate the Vickers hardness at the surface. MATERIALS AND METHODS: The tested artificial teeth included seven composite resin teeth, one acrylic resin tooth, and one porcelain tooth. Specimens were tested 50 hours after immersion in distilled water at 37 degrees C. The impact value and Vickers hardness were measured. A one-way analysis of variance was used to analyzed the data (P = .05). RESULTS: The composite resin teeth showed an intermediate impact value between that of the acrylic resin tooth and the porcelain tooth. Among the artificial teeth investigated, the porcelain tooth showed the highest impact value. A significant difference in the impact value was observed between the porcelain tooth and the composite resin and acrylic resin teeth. However, no significant difference was observed among the composite resin teeth tested. A significant correlation was found between the impact values and the Vickers hardness of the artificial teeth. CONCLUSION: The present findings suggest that composite resin teeth and acrylic resin teeth have a higher shock absorbability than porcelain teeth.

Absorption↗