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PubMed1998

The traditional therapeutic paradigm: complete denture therapy.

The art and science of complete dentures for oral restoration has been espoused and debated for over a century. A tradition of clinical mentoring has passed this prosthodontic trust through time to create an educational cycle where the pupil ultimately became the tutor for yet another pupil. Today's clinical techniques and judgments are an amalgamation of these original prosthodontic philosophies. This article will bring forward some procedures for the fabrication of complete dentures for the scrutiny of their scientific bases. Scrutiny does not imply that aspects of therapy not proved in studies of rigorous scientific design are untruths. However, it is incumbent that those aspects of denture therapy regarded as "public domain" by the corpus of the profession be analyzed. It is also incumbent that possible costly or harmful aspects of denture therapy be identified. There is a paucity of "procedural research" in clinical investigations; research that involves performing an invasive or clinician-intensive procedure. This article also discusses the difficulties in performing procedural research as a means of understanding its importance, but also realizing the reasons that this type of research is not prevalent in the dental and health professional literature. The most common types of investigations used to evaluate patient acceptance and function of dentures will also be discussed.

Attitude to Health↗
PubMed2001

A patient-based assessment of implant-stabilized and conventional complete dentures.

STATEMENT OF PROBLEM: Outcomes of oral implant therapy have been described primarily in terms of implant survival rates and the durability of implant superstructures. Reports of patient-based outcomes of implant therapy have been sparse, and none of these studies have used oral-specific health status measures. PURPOSE: This study assessed the impact of implant-stabilized prostheses on the health status of complete denture wearers using patient-based, oral-specific health status measures. It also assessed the influence of preoperative expectations on outcome. MATERIAL AND METHODS: Three experimental groups requesting replacement of their conventional complete dentures completed an Oral Health Impact Profile (OHIP) and a validated denture satisfaction scale before treatment. One group received an implant-stabilized prosthesis (IG), and 2 groups received new conventional complete dentures (CDG1 and CDG2). After treatment, all subjects completed the health status measures again; preoperative data were compared with postoperative data. RESULTS: Before treatment, satisfaction with complete dentures was low in all 3 groups. Subjects requesting implants (IG and CDG1) had high expectations for implant-stabilized prostheses. Improvement in denture satisfaction and OHIP scores was reported by all 3 groups after treatment. Subjects who received their preferred treatment (IG and CDG2 subjects) reported a much greater improvement than CDG1 subjects. Preoperative expectation levels did not appear to influence satisfaction with the outcomes of implant therapy in IG subjects. CONCLUSION: Subjects who received implants (IG) that replaced conventional complete dentures reported significant improvement after treatment, as did subjects who requested conventional replacement dentures (CDG2). The OHIP appears useful in identifying patients likely to benefit from implant-stabilized prostheses.

Aged↗
PubMed1995

Elderly people's adaptability to complete denture therapy: usability of a geriatric behaviour-rating scale as a predictor.

Accurately predicting prognosis of complete denture therapy requires a reasonable estimation of the ability of a patient to adapt. The aim of the current study was to test the usability of a geriatric behaviour-rating scale (BOP) as a predictor of elderly people's ability to adapt after complete denture therapy. Ninety-five complete denture-wearing residents of four nursing homes for somatically handicapped patients were randomly divided into two groups, 48 test subjects for whom replacement dentures were prepared and 47 test subjects whose current dentures were improved on. The results of these treatments were evaluated by comparing the scores on the so-called 'scale of appreciation' (complaints of and (dis)satisfaction with complete dentures) prior to and at 2 and 6 months post-treatment. Univariate correlations were computed between the scores on the 'scale of appreciation' or the differences in scores at the three evaluation-moments and the foremost BOP-subscale (BOP1, infirmity) and some factors that were considered to be of influence on the process of adaptation. The BOP1 was the only factor showing a significant correlation with the 'scale of appreciation' at 2 months posttreatment; this suggests that little infirmity was connected with a low value of complaints of and dissatisfaction with complete dentures or a positive alteration of this value. It is concluded that the BOP1 can be a useful predictor of complete denture therapy in this group of elderly people. A relationship between elderly people's adaptability to complete denture therapy and the BOP or any other geriatric behaviour-rating scale could be possible.

Adaptation, Psychological↗
PubMed1997

[The influence of teeth positions to lower complete denture retention and health of supporting tissues].

Three kinds of three dimension finite element models of edentulous mandibile and the complete denture were established to investigate the influence of artificial teeth positions to denture retention and the supporting tissue. Ten myodynamic and traditional complete dentures were constructed to compare the difference of artificial teeth positions to alveolar ridge. The results indicated: 1. The stress was not obvious different in mandible when teeth were placed over the crest of the ridge or moved lingually or buccally to the ridge in 3 mm; 2. Under occlusion force, it was beneficial for the lower supporting tissue with artificial molars being placed over the slope of mandible and beneficial for denture retention with molars teeth being placed on the crest of ridge buccally; 3. With the effects of oral muscles, the teeth on the crest of ridge buccally or lingually in 3 mm in molar and premolar regions were respectively available; 4. There were obvious difference in arch width of artificial teeth arrangement between traditional and myodynamic complete dentures, the arch was wider in myodynamic complete denture than that of traditional complete denture at molar region.

Denture Retention↗
PubMed1992

A technique for making an esthetic maxillary complete denture surgical stent.

A technique for making an esthetic complete denture as a surgical stent to be used in conjunction with hydroxyapatite augmentation surgery of the maxillary arch is presented. The technique involves the use of an articulator, a remount jig, and duplication of a surgically prepared cast.

Alveolar Ridge Augmentation↗
PubMed2006

[Establishing three-dimensional reconstruction and measuring system for complete denture occlusion].

PURPOSE: This study was designed to investigate the digital method of locating and reconstructing the occlusal relationship between the upper and lower full dentures. METHODS: The artificial teeth occlusal surfaces of ten complete dentures were scanned by non-contact laser scanner and were reconstructed by three-dimensional technique. With placements of 6 standard steel ball, the three-dimensional position relationship of upper and lower full dentures were studied and reconstructed in centric occlusal position. RESULTS: The three-dimensional reconstruction and measuring system of complete denture occlusion was preliminarily established in this study. CONCLUSIONS: This study focused on exploiting a new system to quantitatively reconstruct the occlusal relationship of complete denture in centric occlusion. And the study may set a methodological foundation of further three-dimensional research for complete denture occlusion.

Dental Occlusion↗
PubMedDate not supplied

Prospective clinical trial comparing lingualized occlusion to bilateral balanced occlusion in complete dentures: a pilot study.

PURPOSE: The aim of this prospective comparative trial was to evaluate whether patients treated with complete dentures with lingualized occlusion (LO) exhibited more positive results than patients treated with complete dentures with bilaterally balanced occlusion (BBO). MATERIALS AND METHODS: Twenty-eight completely edentulous patients, ranging in age from 60 to 82 years (mean age 70.9), consented in writing to be participants in this trial. The first 14 patients enrolled in the study protocol were treated with complete dentures with LO, and the next 14 patients were treated with complete dentures with BBO. Baseline characteristics were measured prior to the trial. Main outcome variables involved subjective outcomes of general satisfaction, ability to masticate, and stability and retention of the prostheses; these were quantified with a 100-mm visual analog scale. Objective outcomes were masticatory performance and the number of adjustments. Statistical assessments of the 2 groups were compared using multiple linear regression analysis. The baseline characteristics were analyzed by Student t test and chi-square test. RESULTS: There were no significant differences between the groups at baseline. The height of the alveolar ridge exhibited significant correlations with masticatory performance (P = .02). The occlusal scheme exhibited a significant correlation with only the patient's retention satisfaction rating (P = .03). CONCLUSION: Despite limitations of this study attributed to the small sample size and lack of randomization, this pilot study found that edentulous patients fitted with complete dentures with LO experienced and expressed greater satisfaction with their denture retention. In addition, it was observed that a higher alveolar ridge resulted in greater masticatory performance.

Aged↗
PubMed1987

The effect of clinical remount procedures on the comfort and success of complete dentures.

Fifteen patients were treated with complete dentures in a routine manner that included a clinical remount. A second group of 15 was treated in the identical manner except that the clinical remount was not performed. The occlusal patterns of all dentures were recorded in the patient's mouths at delivery and again 1 week later by using a photoelastic membrane to provide a permanent record. The presence or absence of soreness was also noted for each patient during the week after delivery. Results indicate that clinical remounts significantly reduced the incidence of soreness, preserved the occlusal force, and reduced the changes in occlusal patterns of the dentures. Although both cusped and flat teeth were used in both treatment groups, no significant differences were noted in relation to either form on the basis of the indices studied.

Consumer Behavior↗