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PubMed1993

Educational perspectives in implant prosthodontics.

Osseointegration as a clinical reality arrived in Australia 10 years ago. Since that time, training courses and research programs have been conducted at the universities in Perth and Sydney. As a result of these developments, osseointegrated implant prosthodontics is now common practice, and continues to grow at an accelerated rate. General dentists have become increasingly interested as the scope of treatment expanded into the partially edentulous mouth and the missing single tooth situation. As the necessity arises to provide treatment for more patients because of increased patient demand, the future of simple implant placement for selected cases will have to be reassessed. It is inevitable that eventually, capable, highly motivated dentists will place their own implants in an effort to achieve more affordable treatment in a simplified but carefully organised environment, with all variables under the control of the single operator.

Dental Implantation↗
PubMed1995

Long-term soft lining materials--the relationship between prosthodontic opinion and compliance.

This study investigated the relationship between expert prosthodontic opinion of the suitability of long-term soft lining materials and compliance, as measured by depth of penetration measurements. It showed that there was very good agreement between subjective assessment and objective measurement. Opinion on satisfaction ranged from 82.4% for a heat-cured silicone to 10.8% for a heat-cured soft acrylic which had been stored in water for four weeks. The findings make it possible to set realistic values for a standard test of compliance. The results for depth of penetration allow valuable information to be given to the clinician as to the varying compliance of long-term soft lining materials.

Acrylic Resins↗
PubMed1996

Occlusal vertical dimension in prosthodontics.

Occlusal vertical dimension is important in all aspects of prosthodontics. Unfortunately, there is no scientific method of determining the correct occlusal vertical dimension. The amount of interocclusal rest space (IRS) is a rough guide since muscle tone, which determines the space, is variable. IRS varies greatly from one patient to the next. It will automatically be correct when the occlusal vertical dimension is correct. IRS should not be interfered with regardless of its size. Many techniques have been used for determining occlusal vertical dimension in dentulous and edentulous patients. Regardless of the technique, the occlusal vertical dimension must be determined carefully by the dentist for a successful prosthesis.

Biometry↗
PubMedDate not supplied

Perforation of dental gloves during prosthodontic treatments as assessed by the conductivity and water inflation tests.

The incidence of latex glove perforation during prosthodontic treatment was investigated on 122 occasions using two methods, a conductivity test and a water inflation test. Latex glove perforation was detected in 38.5% of the treatments by the conductivity test and in 27.9% by the water inflation test. The perforation went unrecognized in 74.7% of the occurrences (35/47 incidents) using the conductivity test and in 64.7% (22/34) when the water inflation test was used. Of the total 55 glove perforations, 21 perforations were detected only by conductivity test, 3 were detected only by the water inflation test, and 31 perforations were detected by both methods, which suggested that the conductivity test is more sensitive than the water inflation test for the detection of glove perforation. The results of this research suggested that even when latex gloves are worn, the risk to prosthodontists of exposure to body fluids remains in four of every six treatments, often without the awareness of the prosthodontist.

Chi-Square Distribution↗
PubMed1996

Prosthodontics--from craft to science.

Prosthodontics has evolved slowly from being an ancient craft into a modern science. The literature of the ancient world is replete with dental references which provide insights into the way dentistry was once practiced. The scientific breakthroughs of the past century have most prominently accelerated dentistry's modernization. The dentistry of the past has paved the way to modern day dental science and treatment.

Esthetics, Dental↗
PubMed1997

A brief history of U.S. Air Force prosthodontics.

This article is a brief overview of the evolution of the U.S. Air Force Dental Service with special emphasis on the simultaneous development of the specialty of prosthodontics within the Dental Service. Of special note is a review of the outstanding Air Force Training programs and Area Dental Laboratory system.

Aerospace Medicine↗
PubMed1997

Personality factors versus expectations and self-reported symptoms among patients awaiting advanced prosthodontic treatment.

To assess simple questions for identifying patient personality traits among a normal Swedish population and to assess possible relationships between personality and symptoms, attitudes, dental problems, and received dental care, a questionnaire was sent to 489 subjects awaiting prosthodontic treatment (response rate 84.2%). Three personality traits could be identified: "Fearful-depressed" subjects consumed more tranquillisers, were worried and had many symptoms, whilst "Open-minded" were optimistic about treatment, had high expectations and few symptoms. "Control-minded" did not reveal worries and guarded their autonomy. It was concluded that personality indicators were related to clinically relevant factors: salience of teeth, perceptions of problems, dental attendance pattern, expectations and perceptions of symptoms.

Aged↗
PubMed1997

Dimensions of satisfaction among prosthodontic patients.

Patient satisfaction with advanced prosthodontic treatment was measured by a questionnaire in five dimensions: attitude towards information; general well-being; economy; function; appearance concerning the number, shape, position and colour of the teeth. The questionnaire was distributed to 380 patients with extensive oral restorative treatment (response rate 88.2%). The levels of satisfaction were generally very high. Only 4% of patients stated with hindsight that they would not have carried through the treatment. The various dimensions were summated into a comprehensive satisfaction measure that displayed adequate discriminatory ability. No weighting of dimensions was possible, but the multidimensional nature of patient satisfaction was confirmed.

Adult↗
PubMedDate not supplied

Prosthodontics and the aging patient.

As an increasing percentage of our population is growing older and suffering from chronic medical conditions, the ability of the dentist to treat these patients is becoming more important. The dentist must be aware of the these patients' physiology and changing anatomy as well as their psychosocial needs. Changes in oral and dental tissues related to aging, as well as limitations in this population's perceived dental care needs, are presented. Modifications in the practice of fixed, removable partial, and complete denture prosthodontics as related to the management of the geriatric patient by the general practitioner are discussed.

Aged↗
PubMed2001

The emotional effects of tooth loss in partially dentate people attending prosthodontic clinics in dental schools in England, Scotland and Hong Kong: a preliminary investigation.

AIM: To compare the emotional effects of tooth loss in three partially dentate populations. DESIGN: A questionnaire survey. MATERIALS AND METHODS: A questionnaire was completed by 150 partially dentate subjects undergoing routine prosthodontic care at Guy's, King's and St Thomas's Dental Institute, London; the Dental School, Dundee, Scotland; and the Faculty of Dentistry, University of Hong Kong. Data were analysed using the Chi-square test. RESULTS: Forty nine per cent of all participants reported difficulties in accepting the loss of some of their teeth. People from Dundee were less likely to have difficulties accepting tooth loss (P = 0.001). People from London took longer to come to terms with their tooth loss and were more likely to feel less confident (P < 0.001). Fifty five per cent of all participants restricted their choice of foods and 54 per cent had not enjoyed their food as much as before. Fewer people in Dundee restricted their choice of food (P < 0.001) and were more likely to enjoy their food (P = 0.009). People in Hong Kong were most likely to restrict their choice of food (P = 0.006). Thirty five percent of all subjects felt unprepared for the effects that tooth loss had upon them. People in Hong Kong were more prepared for tooth loss than those in Dundee and London (P = 0.003). In addition, they were less concerned about leaving their dentures out overnight (P = 0.024). CONCLUSIONS: The emotional effects of tooth loss were significant in all groups. People from London took longer to come to terms with their tooth loss.

Attitude to Health↗
PubMed1976

Complete denture prosthodontics for the radiation patient.

The increased use of radiation therapy for the control of oral cancer necessitates that all dentists concerned with the rehabilitation of oral cancer patients be familiar with this treatment modality. Radiologic equipment, the rationale for their use, and the sequelae to oral treatment are discussed. Misconceptions have developed concerning the advisability of prescribing complete dentures following radiation therapy. However, clinical experience in the Maxillofacial Unit at the University of California, San Francisco, indicates that most radiation patients can wear complete dentures. The need to follow sound prosthodontic techniques is advocated, along with a few modifications related specifically to the radiation patient. Patient cooperation and meticulous care during and following the placement of dentures are stressed to minimize the risk of tissue necrosis and to preserve the well-being of the patient.

Alveolar Process↗
PubMed1976

Prosthodontic aspects of palatal elevation and palatopharyngeal stimulation.

The prosthodontic aspects of palatal elevation and palatopharyngeal stimulation were discussed. Following are important factors that must be considered. (1) Elevation of the soft palate should be gradual to avoid placing pressure upon the teeth retaining the prosthesis and to reduce mucosal irritation. (2) Prosthetic stimulation should be initiated as soon as palatal paralysis is noted to prevent palatal disuse atrophy. (3) The palatal lift prosthesis may be used as a temporary or definitive treatment for palatal incompetency. When adequate elevation of the soft palate has been achieved, the prosthesis may be discarded. Otherwise, the patient would wear the prosthesis as a permanent supportive device. (4) The construction of the combined palatal lift/pharyngeal section prosthesis includes the gradual palatal elevation and molding of the pharyngeal section to reduce the gag reflexes and to increase palatopharyngeal muscle adaptation to the prosthesis. After the initial placement, adjustment to the pharyngeal section is easier for the patient. (5) Speech and myofunctional therapy should be instituted in conjunction with prosthetic treatment. (6) The palatal lift and combination prostheses are more effective for patients with less severe neurologic impairment and speech articulatory problems. (7) The palatal lift prosthesis is more effective for those patients with palatal incompetency who have no involvement of the other oropharyngeal muscles. The combination type of prosthesis is more effective for patients with palatopharyngeal insufficiency without marked speech articulatory disorders. There are still several questions which require further investigation. These include: (1) What is the relationship between the palatal stimulation and the degree of neuromuscular function and recovery? (2) What is the relationship between the palatal stimulation and the degree of palatal disuse atrophy? (3) What is the relationship between pharyngeal stimulation and muscle contraction? (4) What is the degree of stability of palatopharyngeal function and muscle contraction after stimulation?

Denture Design↗
PubMed1977

Evaluation of radiotherapists' reports for treatment of prosthodontic patients after irradiation.

A simplified explanation of gaining insight into the radiotherapist's report in order to deal with a patient who has received radiation treatment has been discussed. The best method for increasing understanding of this report is to work in conjunction with the radiotherapist before and after the patient is given radium. Five factors are important in the treatment of the irradiated patient. These are: (1) initially recognizing the radiation patient, (2) understanding the radiotherapist's report, (3) following good prosthodontic principles, (4) integrating treatment with the radiotherapist's report to prevent future problems, and (5) maintaining extremely close follow-up to detect any sore spots that could lead to major complications such as bone or soft-tissue necrosis. A poor candidate for dentures is normally a difficult candidate following radiation. Not all patients are capable of tolerating a prosthesis following radiation therapy. However, for many, function and esthetics can be restored.

Dentures↗
PubMed1981

An endodontic-prosthodontic approach to internal tooth reinforcement.

Recent years have seen an emphatic surge of using root canal therapy as a means of retaining teeth which otherwise would have been extracted. Many of those endodontically treated teeth are badly broken down, requiring extensive rebuilding to make them restorable as individual units or units in fixed or removable prosthetic designs. The authors present an endodontic-prosthodontic approach in evaluating those teeth and in resolving problems on how best to strengthen the endodontically treated tooth to make it a viable component of the mouth.

Crowns↗
PubMed1982

Prosthodontic management of postsurgical soft tissue deformities associated with marginal mandibulectomy. Part I: Loss of the vestibule.

1. Marginal mandibulectomy patients with a postoperative obliteration of the vestibule were treated prosthodontically in accordance with the "denture space" concept. 2. All patients presented displayed adequate form and function with the prostheses during a period ranging from 2 to 6 years without being subjected to preprosthetic surgery. 3. The most important factor when considering prosthesis stability is the interrelationship between form and function of the orofacial structures rather than the mechanical factors of maximal bone coverage by the prosthesis.

Dental Occlusion, Balanced↗
PubMed1983

The metallurgy of Ni-Cr alloys for fixed prosthodontics.

Ni-Cr alloys continue to be an important part of dental restorative materials. It behooves those interested to study these alloys and develop an understanding of their chemical and physical characteristics. Introduction of new alloys almost monthly presents an educational challenge to the entire profession. Many dental schools do not use Ni-Cr alloys for fixed prosthodontics because questions exist about the efficacy and performance of such alloys. These doubts may be resolved by continued research. Concern about mechanical properties can be alleviated if an understanding of the requirements for successful use, for example, casting, burnishing, polishing, and stresses encountered in service, is achieved. Information on the nature of corrosion intraorally is needed, particularly with regard to correlating in vitro testing with in vivo performance. Further studies of porcelain-alloy compatibility are indicated to understand properties affecting compatibility. Performance of high-temperature porcelain-alloy systems could influence processing techniques so that specific materials could be used more appropriately. In addition, the nature of porcelain-to-alloy bonding may be revealed by use of advanced chemical analysis techniques to identify processes occurring at the atomic level, with identification of oxides and reacted zone produces may also provide data for design of new alloys for porcelain-metal systems. Finally, factors related to the clinical performance of nickel-based alloys, including their allergenic potential, have not been considered in this report.

Chemical Phenomena↗
PubMed1983

Definitive prosthodontic therapy for TMJ patients. Part II: Posterior and superior condylar displacement.

Examples of anterior condylar repositioning were given for fixed and removable partial denture prostheses without changes in the vertical dimension of occlusion. A superior condylar displacement was treated with a temporary acrylic resin inferior repositioning prosthesis, followed by a gold onlay for over a year. Subsequent final porcelain-fused-to-gold restorations preserved the therapeutic inferior condylar repositioning. The treatment procedures are the same in principle for all patients, that is, the diagnosis and the fabrication of the provisional treatment prosthesis and the final prosthesis are carried out with the specific guidance of lateral transcranial TMJ radiographs. The patient must be comfortable in the planned treatment position for at least 3 months before final restorative procedures are initiated. The repositioned condyles in the fossae are reproduced in the final prosthesis and documented at each step of the procedure radiographically. The TMJ lateral transcranial radiograph, then, is a direct guide to the diagnosis, treatment prosthesis, and final prosthodontic restoration.

Dental Occlusion, Balanced↗