Metal Occlusal Surfaces Research Articles

Rehabilitation of a patient with single complete tooth supported overdenture against the unmodified natural dentition using functionally generated path technique – A Case Report

Meyer’s proposed chew-in technique also called functionally generated path (FGP) technique, is indicated for the restoration of an edentulous arch that is opposed by natural teeth as it does seem to provide the most accurate method of recording occlusal patterns, also help to minimize the effects of negative factors, and to overcome the deficiencies of articulators. As stated by Rudd and Morrow, this technique is especially suitable for tooth-supported complete dentures, due to inherent stability of tooth-supported record bases helps in recording jaw relationships accurately. Whenever a single complete denture is opposed by natural dentition, problems observed are abrasion of the artificial acrylic resin teeth and frequent fractures of resin denture base due to occlusal stresses. Hence this case report describes the single complete tooth supported overdenture with a metal-based denture and metal occlusal surfaces against unmodified natural dentition which has shown to achieve a good denture stability with occlusal harmony, and patient satisfaction.

Prosthodontic treatment of a retrognathic edentulous maxilla demonstrating limited interarch distance: 3.5-year results with fixed and removable implant prostheses

The prosthodontic treatment of patients with a retrognathic edentulous maxilla should consider the restoration of the lower facial profile and access for oral hygiene. This clinical report describes prosthodontic treatments of a patient with edentulism who presented with repeated fractures of the denture teeth of a maxillary implant-supported complete fixed dental prosthesis (ICFDP) and a mandibular implant-supported overdenture. Considerable plaque accumulation was noted on the ICFDP, which was replaced with an open palatal design implant-supported overdenture. However, the patient experienced difficulty managing the 2 removable prostheses. The patient’s mandible was eventually restored with a milled titanium alloy framework ICFDP with metal occlusal surfaces. This combined approach of fixed and removable prostheses was stable at 3.5-year follow-up appointment, without compromising the patient’s oral hygiene or comfort.

CAD-CAM implant-supported fixed complete dental prosthesis with titanium milled molars: A clinical report

Implant-supported fixed complete dental prostheses have been associated with a high implant success rate in long-term studies. However, they have also been associated with a high frequency of prosthetic complications. The most frequent and primary prosthetic complication has been the fracture or wear of the occlusal surface of acrylic resin teeth that are typically attached to a metal framework. The design of the framework in this clinical report involved the incorporation of metal occlusal surfaces for the posterior first molars to the framework. The titanium framework was fabricated with computer-aided design and computer-aided manufacturing (CAD-CAM) technology. The remaining teeth were restored in a conventional manner with acrylic resin denture teeth bonded to the titanium framework. This was expected to maintain the occlusal vertical dimension and also reduce the frequency of the primary complications associated with these prostheses.

Overlay removable partial denture as temporary restoration of vertical dimension of occlusion in a bruxist patient

The reestablishment of the vertical dimension of occlusion is an important phase during prosthodontics treatment. Its reduction can be a consequence of severe bruxism, and patient rehabilitation requires complex, expensive, and long treatments. In this context, an overlay removable partial denture is a viable alternative, as it represents a simple manufactured reversible treatment. As a temporary treatment, it does not require tooth wear, reestablishes vertical dimension of occlusion, and allows the patient to adapt to this new dimension until the definitive rehabilitation treatment can be planned and finished. This case report describes the temporary rehabilitation of a maxillary complete edentulous bruxist patient with excessive tooth wear on his lower jaw, seeking treatment at the Removable Prosthodontics Department at State University of Ponta Grossa to replace his upper complete denture. A new complete denture was made and the implementation of an overlay removable partial denture was proposed to be made to the lower arch, which provided aesthetics and function to the patient until the completion of the definitive work. The patient was instructed and guided about the causal factors and consequences of his parafunctional habit and was taught methods for self-perception to control frequency. For the final rehabilitation, a new maxillary complete denture with metal occlusal surfaces will be made as well as metaloceramic crowns with metal occlusal using intraradicular retention with cast posts. An occlusal splint will be inserted in the lower jaw as supportive therapy to control the parafunctional habit.

A multidisciplinary approach for the rehabilitation of a patient with an excessively worn dentition: A clinical report

This clinical report describes a multidisciplinary approach to the diagnosis and treatment of a patient with a severely worn dentition. The treatment included osteotomy and immediate implant placement and loading in the mandible. The definitive restorations were implant- and tooth-supported metal ceramic restorations. These restorations were fabricated with metal occlusal surfaces at an increased occlusal vertical dimension, which provided acceptable esthetics and function.

Prosthodontic approach for restoration of extremely worn dentition: A case report

This clinical report illustrates the oral rehabilitation of a 48 year old female patient with severely worn teeth with accompanying loss of vertical dimension of occlusion. The aim of treatment was to restore aesthetics and improve masticatory function and it was achieved by placing a tooth supported overdenture with custom made precision attachment from mandibular right and left first premolars, single crowns in relation to maxillary centrals, laterals, canines and right and left first premolars, metal-ceramic three unit fixed partial dentures for the missing maxillary and mandibular right and left first molars. Metal occlusal surfaces were preferred for strength and durability and keeping the cost factor in mind as per the patients request. This treatment option has been suggested to be efficient and cost effective,with the final outcome pleasing to the patient.

An alternative treatment of occlusal wear: Cast metal occlusal surface

Acrylic resin denture teeth often exhibit rapid occlusal wear, which may lead to decrease in the chewing efficiency, loss of vertical dimension of occlusion, denture instability, temporomandibular joint disturbances, etc. There are various treatment options available like, use of highly cross linked acrylic teeth, amalgam or metal inserts on occlusal surface, use of composite, gold or metal occlusal surface, etc. Several articles have described methods to construct gold and metal occlusal surfaces, however, these methods are time-consuming, expensive and requires many cumbersome steps. These methods also requires the patient to be without the prosthesis for the time during which the laboratory procedures are performed. This article presents a quick, simple and relatively inexpensive procedure for construction of metal occlusal surfaces on complete dentures.

PROSTHODONTIC REHABILITATION OF A PATIENT WITH DENTINOGENESIS IMPERFECTA

Dentinogenesis Imperfecta is an autosomal dominant disorder of tooth development characterized by the presence of opalescent dentin, resulting in a dusky blue to brownish discoloration of the teeth. This condition is genetically and clinically heterogeneous, it may affect only the teeth or it may be associated with the Osteogenesis Imperfecta. It is inherited as autosomal dominant trait and in fact it is one of the most common dominantly inherited disorder in humans. The scalloping at the dentinoenamel junction is thought to help by mechanically interlocking the two hard tissues together. This locking is defective in these conditions which lead to enamel fracture easily from the defective dentin. The exposed dentin may then undergo severe and rapid attrition. Early diagnosis and proper treatment is mandatory in these conditions. Delay in the treatment can cause partial or complete loss of clinical crowns with healthy roots. A case report is discussed in which a young patient with Dentinogenesis Imperfecta was treated with maxillary fixed partial dentures and mandibular fibre reinforced overdentures with metal occlusal surfaces.

Prosthodontic rehabilitation of dentinogenesis imperfecta

Dentinogenesis imperfecta and its prosthodontic management is a challenging task. Treatment protocol varies according to clinical case. Although various reports in the literature suggest general guidelines for treatment planning, the present case report describes a full mouth rehabilitation of a young patient with dentinogenesis imperfecta treated by maxillary fixed partial dentures and mandibular fiber reinforced overdenture with metal occlusal surfaces.

A technique to fabricate metal occlusal surfaces for the overlay removable partial denture

The overlay removable partial denture (ORPD) is a treatment option for restoring the dentition of patients with significant loss of occlusal vertical dimension (OVD).1 Articles on this topic have described the use of a provisional occlusal device (POD) to evaluate OVD in terms of function and esthetics.2-9 In these reports the authors describe mounting the refractory cast and waxing the occlusal portion of the ORPD using a centric relation (CR) record. The POD was not directly used for articulation and fabrication of the ORPD.

Maxillary and mandibular overlay removable partial dentures for the restoration of worn teeth

This clinical report describes the fabrication of maxillary and mandibular cast overlay removable partial dentures for the restoration of severely worn teeth with accompanying loss of vertical dimension of occlusion. The frameworks supported porcelain veneers for esthetics and metal occlusal surfaces for strength and durability.

Laboratory fabrication of gold occlusal surfaces for removable and implant-supported prostheses.

This article describes a technique for fabricating prosthetic teeth with gold occlusal surfaces for removable or implant-supported prostheses. Following a successful wax try-in appointment, the denture teeth used in the prosthesis are invested in a denture flask. After deflasking, the gingival 2/3 of the denture teeth are trimmed away. The remaining occlusal portions of the teeth are invested in a gypsum-bonded investment and cast in a type III gold alloy. After polishing, the castings are repositioned back into their respective sites in the flask. An acrylic resin of an appropriate shade is mixed and packed in the flask. Once the acrylic resin is processed to the metal occlusal surfaces, the individual teeth are removed from the flask and polished. Then the finished teeth are reinserted in the wax trial denture, the occlusion is refined, the final wax-up is completed, and the prosthesis is processed.

Laboratory fabrication of gold occlusal surfaces for removable and implant‐supported prostheses

This article describes a technique for fabricating prosthetic teeth with gold occlusal surfaces for removable or implant‐supported prostheses. Following a successful wax try‐in appointment, the denture teeth used in the prosthesis are invested in a denture flask. After deflasking, the gingival 2/3 of the denture teeth are trimmed away. The remaining occlusal portions of the teeth are invested in a gypsum‐bonded investment and cast in a type III gold alloy. After polishing, the castings are repositioned back into their respective sites in the flask. An acrylic resin of an appropriate shade is mixed and packed in the flask. Once the acrylic resin is processed to the metal occlusal surfaces, the individual teeth are removed from the flask and polished. Then the finished teeth are reinserted in the wax trial denture, the occlusion is refined, the final wax‐up is completed, and the prosthesis is processed.

Composite occlusal surfaces for acrylic resin denture teeth

Acrylic resin denture teeth often exhibit rapid occlusal wear, which may lead to a loss of chewing efficiency and a loss of vertical dimension of occlusion. The use of metal occlusal surfaces on the acrylic resin denture teeth will minimize occlusal wear. Several articles have described methods to construct metal occlusal surfaces; however, these methods are time-consuming, costly, and sometimes considered to be unesthetic. These methods also require that the patient be without the prosthesis for the time necessary to perform the laboratory procedures. This article presents a quick, simple, and relatively inexpensive procedure for construction of composite occlusal surfaces on complete and partial dentures. (J Prosthet Dent 1997;77:328-31.)

Anterior occlusal contact of complete denture during mastication

The purpose of this study was to measure the actual anterior occlusal contacts in complete denture during mastication and discuss the relation between anterior occlusal contacts and masticatory movements. The actual anterior occlusal contacts were measured electrically with metal occlusal surfaces in five edentulous patients. These metal occlusal surfaces could be removed and changed into two types of occlusion. The masticatory movements were measured by Sirognathograph for seven edentulous patients. The types of anterior and posterior occlusions were changed, and the masticatory movements were analyzed for each of the four types of occlusion. The results were as follows: 1. Anterior occlusal contacts were found during mastication, but not during tapping, in bilateral balanced occlusion. 2. The frequency of anterior occlusal contacts during mastication was increased in non-balanced occlusion. 3. The frequency of occlusal contacts at the canine on the chewing side was increased by continuing of mastication, but was not increased at the canine on non-chewing side. 4. The stability of the denture tended to be lost by eliminating the anterior occlusal contact, judging from the rhythm of masticatory movements. This study suggested that anterior occlusal contacts are necessary for the functional harmony of complete denture during mastication.

Application of lingual contact occlusion to complete dentures with two-layered posterior teeth: A clinical report

When two-layered artificial teeth are used, acrylic resin occlusal parts can be removed from base parts and used directly as resin patterns for casting, which facilitates fabrication of metal occlusal surfaces. Because these teeth were made of acrylic resin, it was easy to modify occlusal morphology before converting to metal. Application of two-layered artificial teeth to achieve lingual contact occlusion brought about sufficient masticatory forces and denture stability and resulted in patient satisfaction.

A simplified technique for fabricating esthetic cast metal occlusal surfaces for dentures

This article describes a simplified method for making esthetic cast metal occlusal surfaces. Monoplane posterior acrylic resin block teeth, east in a nickel-chrome alloy, are coated with silane and an esthetic composite resin veneer is applied to the buccal surface. These veneered posterior metal teeth are incorporated in the wax setup and the dentures are processed and finished. The dentist's routine technique for delivering dentures to the patient can be followed.

Use of silver alloys to oppose lingual bladed denture teeth

T he lingual bladed tooth (U. S. Shizai, Los Angeles, Caiif.) was originally designed in 1974 and reported in i! 977.‘In 1980 McCartney* expressed concern regarding the rapid wear usually associated with resin teeth and described a technique for fabrication of cast metal occlusal surfaces for mandibular teeth that oppose bladed teeth. Since then extended use of bladed teeth for removable partial dentures in younger and/or more vigorous patients has demonstrated that McCartney was correct, because excessive wear has been observed. Because of these observations we realize that a harder chewing surface is needed for mandibular teeth for patients who would predictably have more rapid wear. The following technique, originally developed for removable partial denture and implant patients, is now used for about 30% of all patients with lingual bladed dmtures. Fig. 1. Tips of bladed teeth are easily identified in wax.

Custom metal occlusal surfaces for acrylic resin denture teeth

A simple step-by-step procedure has been presented for the fabrication of custom metal occlusal surfaces for acrylic resin denture teeth. This technique works equally well with complete or removable partial dentures and provides the patient with a long-lasting prosthesis and minimal postinsertion problems due to occlusal changes and wear.

Generated path metal occlusal surfaces to oppose lingual bladed denture teeth

Generated path metal occlusal surfaces to oppose lingual bladed denture teeth