Biomedical subjects
Publications and source records attributed to G N Graser.
A technique has been described to show how a deviated midline, missing lateral incisor, and diastema were corrected with a cosmetic overdenture for a patient who is a professionl model. Irreversible procedures were unnecessary on an otherwise acceptable and functional dentition.
A technique for the fabrication of completed bases for removable dentures has been described. The artificial stone mounting casts and completed bases must be kept free of debris at all times to allow for accurate seating of the bases on the casts. The completed bases must be kept in water when not in use between patient appointments.
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The purpose of Part II of this study was to determine whether or not a denture fabricated to the neuromuscular position (NMP) could be as functional as one fabricated to the terminal hinge position (THP). Two mandibular dentures were fabricated for each of six edentulous subjects, one to the THP and one to the NMP, along with only one maxillary denture each. The subjects had no prior knowledge of the two mandibular dentures in order to determine the clinical significance of a difference in the two positions. These results were evaluated by clinical methods. It was concluded that the NMP is clinically acceptable for intercuspation of artificial teeth on complete dentures.
The purpose of this investigation was to obtain information about the terminal hinge position (THP) and the neuromuscular position (NMP) in the edentulous population. The difference between the two positions was evaluated anteroposteriorly and mediolaterally to determine horizontal differences and reproducibility between days. In 25 edentulous subjects, five recordings were made at the neuromuscular position with no dentist guidance and five recordings at the terminal hinge position with dentist guidance; on a second day, the recordings were repeated. The differences between positions were evaluated by statistical methods. It was concluded that: (1) there is a discrepancy between the THP and the NMP for all edentulous subjects examined, (2) the NMP is anterior and medial or lateral to the THP, and (3) the NMP is not as reproducible as the THP.