Richard D. Jordan

Using ultrasonic sealers to remove fractured root posts

The removal of an existing cast or cemented stainless steel post has proved difficult, time consuming, and to require excessive removal of tooth structure. The use of the ultrasonic scaler alone and in combination with other techniques provides a conservative, efficient method for retrieval of broken posts from root canal spaces. The primary advantage of these techniques in the removal of posts is the conservation of remaining tooth structure.

Multiple cast post and cores for severely worn anterior teeth.

A technique has been presented to simplify the fabrication of multiple direct post and core patterns. When combined with techniques for indirect provisional restorations, this technique merely requires the fabrication of an additional plastic template to form the direct core patterns.

Prosthodontic laboratory and curriculum survey. Part IV: Fixed prosthodontic curriculum survey

A fixed prosthodontic curriculum survey was mailed to 60 U.S. dental schools; 42 surveys were returned. The results were compared with those of Part III of the study. Comparisons and their implications were discussed.

Thermoplastic custom trays for making regional facial impressions

A facial impression technique that uses a thermoplastic splint material as a custom tray has been described. The use of this technique simplifies a time-consuming and cumbersome procedure for both the patient and the dentist.

The effects of rubber dam retainers on porcelain fused-to-metal restorations

This study evaluated the effects of rubber dam retainers on the porcelain of porcelain fused-to-mental restorations. Scanning electron photomicrographs taken before and after rubber dam retainer placements were qualitatively evaluated. The porcelain fused-to-metal restorations were of varying marginal designs and thicknesses of porcelain. All specimens exhibited damage to the cervical porcelain in the area of the rubber dam retainers contact. The severity of the cracking or pitting could not be correlated with a particular marginal design of metal or porcelain.

Multiple crowns fabricated for an existing removable partial denture

Abstract A technique has been described for the fabrication of multiple crowns beneath an existing removable partial denture.

Die recovery technique

A separating disk is used to make proximal cuts and cuts on the underside surface of the cast. The dies can be recovered without damage to the margins.

Tooth duplication in complete dentures

This article describes the duplication of porcelain denture teeth in acrylic resin. The method allows the patient to use their existing denture as a transitional prosthesis without harming opposing restorations.

Temporization of an extensively fractured anterior tooth

Abstract A technique has been described for making a temporary restoration for an extensively fractured anterior tooth (Fig. 5). The esthetic and functional requirements are met with the acrylic resin and polycarbonate crown. Stability is met primarily with the endodontic file and secondarily with the resin coronal seal of the canal.

Acid-etched splinting to a ceramometal abutment

This technique describes an acid-etch metal splint with a ceramometal abutment. The internal surface of the DuraLingual Wing Form patterns provide undercuts necessary for composite bonding. The external surface provides a smooth solid metal surface when cast. Since this system uses mechanical undercuts, the resin-bonded splints can have multiple try-ins without the detrimental effects of burnishing and contamination that occur with electrolytically etched metal surfaces. If an abutment for a resin-retained fixed partial denture requires a ceramometal crown, a DuraLingual Wing Form can be incorporated onto its lingual surface thereby providing mechanical undercuts for bonding. The opposite undercuts of the crown and splint provide excellent bond strength for the system.