Timothy R. Saunders

In-depth disinfection of acrylic resins

This study demonstrated that bacteria penetrate three kinds of dental acrylic resin after a short time period. Samples of acrylic resin were contaminated with a variety of bacteria and were then placed in three different disinfecting solutions as directed by the manufacturers. After the specific dilution and immersion time, cultures were made from the resin samples. The only effective disinfectant was a 0.525% solution of sodium hypochlorite at a 10-minute immersion. It disinfected not only the surfaces but also the bacteria that penetrated the surfaces to a depth of 3 mm.

The maxillary complete denture opposing the mandibular bilateral distal-extension partial denture: Treatment considerations

The dentist should approach the treatment of the complete maxillary denture opposing the mandibular bilateral distal extension partial denture cautiously, and the institution of correct treatment initiatives is essential. Every patient must be aware from the outset that the longest possible life of any prosthesis with the least possible harm to the remaining tissues can only be ensured by regular recall and maintenance care.

A speech-aid prosthesis for anterior maxillary implant-supported prostheses

A procedure has been described that can improve speech deficiencies associated with anterior maxillary implant-supported prostheses. The speech-aid prosthesis has been found to be safe, effective, and cost-efficient.

Temporary soft liners: A modified curing technique to extend liner longevity

A modified curing technique that will extend the useful clinic life of temporary soft liners has been described. This technique offers the following distinct advantages over the traditional method of intraoral curing: (1) a liner that is less porous; (2) a liner that maintains its resilience intraorally for extended periods; (3) a liner that exhibits minimal discoloration over time; (4) increased density that allows adjustments to be made when necessary; and (5) minimized separation from the acrylic resin denture base.

Revised technique for intracavitary radiation of the nasopharynx

If intracavitary implantation is the most desirable treatment modality for nasopharyngeal carcinoma, then the use of the polysulfide rubber as a intracavitary implant is the preferred method. This technique is currently used at various patient treatment centers. Given sufficient time and significant patient numbers, this method of intracavitary implantation will prove to be the most convenient treatment modality.

Synthetic casting tape as a facial impression tray material

A procedure is described that uses thermoplastic synthetic casting tape for fabrication of facial impression trays. Once used, these trays can be disinfected without degradation of the tray material, which allows for storage and later use.

Effect of lead-containing elastic impression materials on whole blood lead levels

Abstract After subdermal injection of lead-containing elastic impression material in the abdominal wall cavities of eight rabbits, whole blood samples were taken at various time intervals over a period of 5 weeks. These samples were compared to preoperative whole blood samples to note lead level changes. No statistically significant lead level changes occurred.

Protective cover cap for implant attachment

A procedure is described for use of a cast metal cover cap to protect implant prosthesis attachments during finishing and polishing. The cap helps prevent distortion or damage to the implant.

Modified clinical procedure for nasal moulage

A modified procedure for using breathing tubes during nasal moulage has been described. This method offers several advantages over traditional techniques, namely, reduction of alar distortion, greater detail of the internal nares and columella, and increased support to the nares while under the weight of the moulage.

Modified clinical and laboratory procedures for fabrication of nasal prostheses

A modified procedure that aids in the fabrication of a nasal prosthesis has been described. This method offers several distinct advantages over traditional techniques. These are (1) use of the silicone putty impression material reduces sculpturing time, (2) the tinted wax allows improved patient acceptance of the wax model at the try-on, and (3) use of conditioning material at the try-on improves marginal adaptation.