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Biomedical subjects

G E Minsley

Publications and source records attributed to G E Minsley.

9 recordsLinked to original sources
PubMed1998

1997 Judson C. Hickey Scientific Writing Awards. An innovative investment method for the fabrication of a closed hollow obturator prosthesis.

An investment method is described for fabrication of a closed hollow obturator based on the use of three sections of a denture processing flask. The thickness of the obturator portion is minimized and all surfaces exposed to the oral cavity are processed with heat-polymerized acrylic resin. The technique eliminates additional steps noted in the literature, allowing for the prosthesis to be processed to completion from the wax trial denture. This technique provides a lightweight and seamless obturator and can be used for complete or partially edentulous cases. Clinical and laboratory time are minimized while fabricating a durable, virtually water-tight prosthesis that can be used alone or in conjunction with an extraoral prosthesis.

Acrylic Resins↗
PubMed1997

Judson C. Hickey Scientific Writing Award Winner. A method of fabrication of a facial prosthesis that improves retention and durability: a clinical report.

This clinical report describes a technique for the fabrication of a facial prosthesis with a visible light-curing resin overlaid with a silicone elastomer. Clinical observations have revealed considerable improvement in the duration of retention of the prosthesis with an adhesive and enhanced longevity of the prosthesis as compared with conventional silicone elastomer facial prostheses retained with the same adhesive.

Acrylic Resins↗
PubMed1991

The effect of cleft palate speech aid prostheses on the nasopharyngeal airway and breathing.

This study determined the effect of a speech aid prosthesis on resting breathing. Nasal cross-sectional area was measured during inspiration and expiration in eight cleft palate patients. The measurements were made for the unobturated defect during both phases of respiration and then repeated while the defect was obturated by a speech aid prosthesis. The results of the study revealed that the presence of a speech aid prosthesis significantly decreased the cross-sectional region of the nasal airway. In 50% of the subjects, the cross-sectional region was less than 0.40 cm2 with concomitant impairment in nasal respiration when the speech aid prosthesis was present in the oral cavity. The data suggest that the design of these prostheses should account for breathing requirements as well as for speech.

Analysis of Variance↗
PubMed1989

The effect of clinical experience on dental students' ability to design removable partial denture frameworks.

To determine whether clinical experience influenced dental students' ability to correctly design removable partial denture frameworks, four combinations of six casts depicting various partially edentulous situations were used in the study. The authors independently rated the casts as to the degree of difficulty on a three-point scale. Only those casts for which there were 100% agreement were used. All of the casts that were used had a moderate degree of difficulty rating (level 2). The dental student sample consisted of 34 second-year students who had just completed 98 hours of instruction in removable partial dentures. Each student was given six casts on which to design removable partial denture frameworks. The students were evaluated before clinical experience in removable prosthodontics and after 1 year of removable prosthodontic experience. The results indicated that the dental students made significantly fewer errors in framework design after clinical experience. Errors on two of 13 framework design items were increased postclinically. The increase in errors on these two items may have been the result of a lack of attention to detail or a lack of reinforcement in learning certain basic concepts.

Clinical Clerkship↗
PubMed1988

Maintenance of intraoral pressure during speech after maxillary resection.

Although structural defects such as cleft palate and severe anterior open bite alter vocal tract resistance, compensatory responses usually result in maintaining consonant pressures at an adequate level. The purpose of the present study was to determine if individuals with an acquired palatal defect spontaneously develop similar compensatory behaviors. The pressure-flow technique was used to measure aerodynamic variables associated with consonant production after surgery and obturation. Although intraoral pressures decreased considerably immediately after surgery, pressures were maintained at a mean level of 3.5-cm H2O. Respiratory volumes increased as much as fourfold without obturation and were normal with obturation. Voice-voiceless differences in air volumes among consonants were maintained even in the presence of the defect. These findings suggest that compensatory responses are directed toward maintaining an appropriate level of intraoral pressure for consonant production.

Adult↗
PubMed1987

Physiologic responses to maxillary resection and subsequent obturation.

Aerodynamic assessment of prosthetic obturation provides the clinician with important information on adequacy of the seal between the oral and nasal cavities. The technique is easy to apply and provides quantitative data on effectiveness of obturation. In addition, the pressure-flow technique provides important information on how individuals respond to changes in the integrity of oral and pharyngeal structures. This study demonstrates that individuals with large surgical defects increase respiratory effort during nonnasal consonant productions in order to maintain adequate intraoral speech pressures. Successful obturation of the defect maintains the speech pressures while dramatically reducing respiratory effort.

Adult↗
PubMed1985

Use of the afterloading technique for intraoral radiation carriers.

A method for fabrication of a radiation carrier with an adaptation of the afterloading technique has been described. The use of the afterloading technique allows for quick and easy placement of multiple radioactive sources; thus time and exposure to the radiotherapist and the patient are minimized during the period of placement and activation of the prosthesis at the time of therapy.

Brachytherapy↗