The Department of Plastic Surgery in our hospital uses compression stockings as a preventive measure against deep venous thrombosis (DVT). Elastic bandages are also used in patients with bone protrusion, skin lesions, or with no size-matched stockings. However, elastic bandages are associated with problems such as inconsistent compression force, ready loss of compression, and local skin lesions due to compression. Therefore, to address these problems, we developed a new bandaging technique by layering different types of bandages (multi-layer bandages), evaluated changes in compression using a measurement device, and examined skin condition after 6 h. On average, the compression of elastic bandages and multi-layer bandages decreased by 52% and 37.4%, respectively, after 6 h (t-test, P = 0.036). Skin wrinkles were finer with the multi-layer bandages. These results suggest that multi-layer bandages are less likely to loosen and that cast paddings prevent bandages from compressing the same local areas. However, because previous research warns of using elastic bandages as an easy way to prevent DVT, it is important to acquire accurate knowledge and master skills for bandaging with proper compression.

PURPOSE: This study aimed to investigate the relationships between reference planes and oral functions on the habitual and non-habitual chewing sides. MATERIALS AND METHODS: Thirty-four subjects with no abnormalities in the maxillofacial region and oral functions were enrolled in this study. Relationships between angles between the reference plane (Frankfort horizontal plane, Camper’s plane, and occlusal plane) and masticatory performance, occlusal force, and occlusal contact area by chewing side were examined. Regarding the measurement of reference planes, a creatively modified three-plane measuring device was used to measure angles between the reference planes. Images were taken from the right and left sides and angles between reference planes were measured. Masticatory performance was examined by measuring the amount of glucose extracted from a gummy jelly on the habitual and non-habitual chewing sides separately. Occlusal force and occlusal contact area were measured by occluding against pressure-sensitive film, and values on the habitual and nonhabitual chewing sides were calculated and analyzed. RESULTS: The angle between Camper’s plane and the occlusal plane correlated with masticatory performance on both the habitual chewing side (r = 0.47, P < .01) and the nonhabitual chewing side (r = 0.36, P < .05). A correlation was observed between masticatory performance and occlusal force on the habitual chewing side (r = 0.46, P < .01). CONCLUSION Masticatory performance became higher as occlusal plane inclination increased. This result represents essential knowledge for prosthetic treatment.

PURPOSE: This study aimed to investigate the relationships between reference planes and oral functions on the habitual and non-habitual chewing sides. MATERIALS AND METHODS: Thirty-four subjects with no abnormalities in the maxillofacial region and oral functions were enrolled in this study. Relationships between angles between the reference plane (Frankfort horizontal plane, Camper’s plane, and occlusal plane) and masticatory performance, occlusal force, and occlusal contact area by chewing side were examined. Regarding the measurement of reference planes, a creatively modified three-plane measuring device was used to measure angles between the reference planes. Images were taken from the right and left sides and angles between reference planes were measured. Masticatory performance was examined by measuring the amount of glucose extracted from a gummy jelly on the habitual and non-habitual chewing sides separately. Occlusal force and occlusal contact area were measured by occluding against pressure-sensitive film, and values on the habitual and nonhabitual chewing sides were calculated and analyzed. RESULTS: The angle between Camper’s plane and the occlusal plane correlated with masticatory performance on both the habitual chewing side (r = 0.47, P < .01) and the nonhabitual chewing side (r = 0.36, P < .05). A correlation was observed between masticatory performance and occlusal force on the habitual chewing side (r = 0.46, P < .01). CONCLUSION Masticatory performance became higher as occlusal plane inclination increased. This result represents essential knowledge for prosthetic treatment.

PURPOSE: This study aimed to investigate the relationships between reference planes and oral functions on the habitual and non-habitual chewing sides. MATERIALS AND METHODS: Thirty-four subjects with no abnormalities in the maxillofacial region and oral functions were enrolled in this study. Relationships between angles between the reference plane (Frankfort horizontal plane, Camper’s plane, and occlusal plane) and masticatory performance, occlusal force, and occlusal contact area by chewing side were examined. Regarding the measurement of reference planes, a creatively modified three-plane measuring device was used to measure angles between the reference planes. Images were taken from the right and left sides and angles between reference planes were measured. Masticatory performance was examined by measuring the amount of glucose extracted from a gummy jelly on the habitual and non-habitual chewing sides separately. Occlusal force and occlusal contact area were measured by occluding against pressure-sensitive film, and values on the habitual and nonhabitual chewing sides were calculated and analyzed. RESULTS: The angle between Camper’s plane and the occlusal plane correlated with masticatory performance on both the habitual chewing side (r = 0.47, P < .01) and the nonhabitual chewing side (r = 0.36, P < .05). A correlation was observed between masticatory performance and occlusal force on the habitual chewing side (r = 0.46, P < .01). CONCLUSION Masticatory performance became higher as occlusal plane inclination increased. This result represents essential knowledge for prosthetic treatment.

PURPOSE: This study aimed to investigate the relationships between reference planes and oral functions on the habitual and non-habitual chewing sides. MATERIALS AND METHODS: Thirty-four subjects with no abnormalities in the maxillofacial region and oral functions were enrolled in this study. Relationships between angles between the reference plane (Frankfort horizontal plane, Camper’s plane, and occlusal plane) and masticatory performance, occlusal force, and occlusal contact area by chewing side were examined. Regarding the measurement of reference planes, a creatively modified three-plane measuring device was used to measure angles between the reference planes. Images were taken from the right and left sides and angles between reference planes were measured. Masticatory performance was examined by measuring the amount of glucose extracted from a gummy jelly on the habitual and non-habitual chewing sides separately. Occlusal force and occlusal contact area were measured by occluding against pressure-sensitive film, and values on the habitual and nonhabitual chewing sides were calculated and analyzed. RESULTS: The angle between Camper’s plane and the occlusal plane correlated with masticatory performance on both the habitual chewing side (r = 0.47, P < .01) and the nonhabitual chewing side (r = 0.36, P < .05). A correlation was observed between masticatory performance and occlusal force on the habitual chewing side (r = 0.46, P < .01). CONCLUSION Masticatory performance became higher as occlusal plane inclination increased. This result represents essential knowledge for prosthetic treatment.

PURPOSE: This study aimed to investigate the relationships between reference planes and oral functions on the habitual and non-habitual chewing sides. MATERIALS AND METHODS: Thirty-four subjects with no abnormalities in the maxillofacial region and oral functions were enrolled in this study. Relationships between angles between the reference plane (Frankfort horizontal plane, Camper’s plane, and occlusal plane) and masticatory performance, occlusal force, and occlusal contact area by chewing side were examined. Regarding the measurement of reference planes, a creatively modified three-plane measuring device was used to measure angles between the reference planes. Images were taken from the right and left sides and angles between reference planes were measured. Masticatory performance was examined by measuring the amount of glucose extracted from a gummy jelly on the habitual and non-habitual chewing sides separately. Occlusal force and occlusal contact area were measured by occluding against pressure-sensitive film, and values on the habitual and nonhabitual chewing sides were calculated and analyzed. RESULTS: The angle between Camper’s plane and the occlusal plane correlated with masticatory performance on both the habitual chewing side (r = 0.47, P < .01) and the nonhabitual chewing side (r = 0.36, P < .05). A correlation was observed between masticatory performance and occlusal force on the habitual chewing side (r = 0.46, P < .01). CONCLUSION Masticatory performance became higher as occlusal plane inclination increased. This result represents essential knowledge for prosthetic treatment.