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Biomedical subjects

S Hobo

Publications and source records attributed to S Hobo.

At least 55 records · Page 3Linked to original sources
PubMed1984

A kinematic investigation of mandibular border movement by means of an electronic measuring system. Part II: A study of the Bennett movement.

Fifty adults with orthognathic maxillomandibular relationships were selected as the test group. The movement of the working condyle was examined during lateral movement of the mandible with an electronic system capable of measuring six degrees of freedom of the mandible with an accuracy of +/- 0.06 mm. The results were: Orbits of the points on the terminal hinge axis d mm from the midpoint during lateral movement of the mandible varied appreciably as the value of d changed. The orbits more affected were the working side on the horizontal and frontal planes. The point on the working side moved forward, laterally, and downward as the value of d was small; and it moved backward, laterally, and upward as the value of d increased. Depending on the value of d, orbits moved in opposite directions. As the value of d varied from small to large, the point on the working side moved only laterally along the terminal hinge axis when d was 55 mm. From this observation, the Bennett movement is explained as the lateral shift of the working condyle along the terminal hinge axis. Reports concerning the directions and mode of motion of the Bennett movement differ because of the lack of specification of location of the positions (targets) assigned for measurement.

Adult↗
PubMed1982

Distortion of occlusal porcelain during glazing.

The amount of vertical height distortion of porcelain cusps and fossae during glazing was investigated, and the following conclusions can be drawn. 1. Vertical height loss was minimized by using opaque cones to support cuspal porcelain. 2. The amount of vertical distortion was less after the second glaze than the first. 3. Adjustment of the occlusal surface after the first glaze followed by reglazing minimized distortion. Glazing distortion can, in fact, be minimized to an acceptable level.

Crowns↗
PubMed1976

Articulator selection for restorative dentistry.

There are many types of articulators that can be used for making fixed restorations. While unquestionably the most accurate, the fully adjustable instrument is not feasible or necessary for many forms of simple occlusal treatment. The effects of tooth-hinge axis radius, intercondylar distance, and condylar inclination on occlusal morphology have been discussed. Guidelines have been proposed for matching the type of articulator with the extent of treatment anticipated. The use of small, nonadjustable hinge articulators is not recommended.

Dental Occlusion↗