A study of the occlusal plane orientation in complete denture construction

Abstract

A cephalometric study was conducted on eighteen dentulous subjects and fifty-six complete denture wearers to determine the location of the natural and artificial occlusal planes as related to Camper's plane. The results indicated that both the natural and artificial occlusal planes were not parallel to Camper's plane. However, the final anteroposterior inclination of the artificial occlusal plane in complete dentures was almost the same as the inclination of the natural occlusal plane.

Relationship between the occlusal plane and three different levels of ala-tragus line in a sample of Sudanese adults

“…In Iranians, the superior border of the tragus was considered the best posterior reference point; in Lebanese, the inferior border was found to be the best reference point, while in Indians, several researchers reported different results. This finding is in agreement with the results of studies carried out by Rathod et al, 12 Karkazis et al, 13 Ghosn et al, 9 and Van Niekerk et al, 14 all of them advocated the use of inferior border of the tragus. On the other hand, the findings of Ismail et al, 5 Krishna et al, 10 Bondekar et al, 15 and Shigli et al, 16 suggested the use of the middle part of the tragus while Madhav, Gupta et al, 8 and Sadr et al, 11 suggested the superior border of the tragus to be the reference point.…”

Relationship between the occlusal plane and three different levels of ala-tragus line in a sample of Sudanese adults

“…In Iranians, the superior border of the tragus was considered the best posterior reference point; in Lebanese, the inferior border was found to be the best reference point, while in Indians, several researchers reported different results. This finding is in agreement with the results of studies carried out by Rathod et al, 12 Karkazis et al, 13 Ghosn et al, 9 and Van Niekerk et al, 14 all of them advocated the use of inferior border of the tragus. On the other hand, the findings of Ismail et al, 5 Krishna et al, 10 Bondekar et al, 15 and Shigli et al, 16 suggested the use of the middle part of the tragus while Madhav, Gupta et al, 8 and Sadr et al, 11 suggested the superior border of the tragus to be the reference point.…”

A Cephalometric Study to Determine the Plane of Occlusion in Completely Edentulous Patients: Part I

“…This finding mirrors the findings of van Niekerk et al [9], Karkazis and Polyzois [11], and Clapp et al [15]. It may be suggested that the definition of the Camper's plane or ala-tragus line given in the Glossary of Prosthodontic Terms 8 [10] (i.e., 'established by the inferior border of the ala of the nose and the superior border of the tragus of the ear') needs revision based on the findings of our study.…”

“…Also, Clapp (1910), Dalby (1912), and Wilson (1917) have suggested that the plane of occlusion is parallel to a line drawn from the lowest point of external auditory meatus (which according to Karkazis and Polyzois [11] is equivalent to the inferior border of tragus) to the lowest point of the alae of the nose [15].…”

The Ala-Tragus Line as a Guide for Orientation of the Occlusal Plane in Complete Dentures

“…22 While Karkazis and Polyzois reported 5.25 degrees ± 3.35 for the same angle, this study has shown 6.12 degrees ± 3.62. 14 In earlier reports, values of the angle between the natural OP and ATL2 were found to be 2.75 degrees ± 3.64 and 2.88 degrees ± 3.54. 14,23 The mean angle obtained in this study was 3.27 degrees ± 2.54.…”

“…14 In earlier reports, values of the angle between the natural OP and ATL2 were found to be 2.75 degrees ± 3.64 and 2.88 degrees ± 3.54. 14,23 The mean angle obtained in this study was 3.27 degrees ± 2.54. Such relatively narrow limits show a close relationship between the two planes.…”

Relationship between the occlusal plane and three different levels of ala-tragus line in a sample of Sudanese adults

“…In Iranians, the superior border of the tragus was considered the best posterior reference point; in Lebanese, the inferior border was found to be the best reference point, while in Indians, several researchers reported different results. This finding is in agreement with the results of studies carried out by Rathod et al, 12 Karkazis et al, 13 Ghosn et al, 9 and Van Niekerk et al, 14 all of them advocated the use of inferior border of the tragus. On the other hand, the findings of Ismail et al, 5 Krishna et al, 10 Bondekar et al, 15 and Shigli et al, 16 suggested the use of the middle part of the tragus while Madhav, Gupta et al, 8 and Sadr et al, 11 suggested the superior border of the tragus to be the reference point.…”

A Cephalometric Study to Determine the Plane of Occlusion in Completely Edentulous Patients: Part I

“…This finding mirrors the findings of van Niekerk et al [9], Karkazis and Polyzois [11], and Clapp et al [15]. It may be suggested that the definition of the Camper's plane or ala-tragus line given in the Glossary of Prosthodontic Terms 8 [10] (i.e., 'established by the inferior border of the ala of the nose and the superior border of the tragus of the ear') needs revision based on the findings of our study.…”

“…Also, Clapp (1910), Dalby (1912), and Wilson (1917) have suggested that the plane of occlusion is parallel to a line drawn from the lowest point of external auditory meatus (which according to Karkazis and Polyzois [11] is equivalent to the inferior border of tragus) to the lowest point of the alae of the nose [15].…”

The Ala-Tragus Line as a Guide for Orientation of the Occlusal Plane in Complete Dentures

“…22 While Karkazis and Polyzois reported 5.25 degrees ± 3.35 for the same angle, this study has shown 6.12 degrees ± 3.62. 14 In earlier reports, values of the angle between the natural OP and ATL2 were found to be 2.75 degrees ± 3.64 and 2.88 degrees ± 3.54. 14,23 The mean angle obtained in this study was 3.27 degrees ± 2.54.…”

“…14 In earlier reports, values of the angle between the natural OP and ATL2 were found to be 2.75 degrees ± 3.64 and 2.88 degrees ± 3.54. 14,23 The mean angle obtained in this study was 3.27 degrees ± 2.54. Such relatively narrow limits show a close relationship between the two planes.…”

Relationship between the occlusal plane and three different levels of ala-tragus line in a sample of Sudanese adults

“…In Iranians, the superior border of the tragus was considered the best posterior reference point; in Lebanese, the inferior border was found to be the best reference point, while in Indians, several researchers reported different results. This finding is in agreement with the results of studies carried out by Rathod et al, 12 Karkazis et al, 13 Ghosn et al, 9 and Van Niekerk et al, 14 all of them advocated the use of inferior border of the tragus. On the other hand, the findings of Ismail et al, 5 Krishna et al, 10 Bondekar et al, 15 and Shigli et al, 16 suggested the use of the middle part of the tragus while Madhav, Gupta et al, 8 and Sadr et al, 11 suggested the superior border of the tragus to be the reference point.…”

A Cephalometric Study to Determine the Plane of Occlusion in Completely Edentulous Patients: Part I

“…This finding mirrors the findings of van Niekerk et al [9], Karkazis and Polyzois [11], and Clapp et al [15]. It may be suggested that the definition of the Camper's plane or ala-tragus line given in the Glossary of Prosthodontic Terms 8 [10] (i.e., 'established by the inferior border of the ala of the nose and the superior border of the tragus of the ear') needs revision based on the findings of our study.…”

“…Also, Clapp (1910), Dalby (1912), and Wilson (1917) have suggested that the plane of occlusion is parallel to a line drawn from the lowest point of external auditory meatus (which according to Karkazis and Polyzois [11] is equivalent to the inferior border of tragus) to the lowest point of the alae of the nose [15].…”

The Ala-Tragus Line as a Guide for Orientation of the Occlusal Plane in Complete Dentures

“…22 While Karkazis and Polyzois reported 5.25 degrees ± 3.35 for the same angle, this study has shown 6.12 degrees ± 3.62. 14 In earlier reports, values of the angle between the natural OP and ATL2 were found to be 2.75 degrees ± 3.64 and 2.88 degrees ± 3.54. 14,23 The mean angle obtained in this study was 3.27 degrees ± 2.54.…”

“…14 In earlier reports, values of the angle between the natural OP and ATL2 were found to be 2.75 degrees ± 3.64 and 2.88 degrees ± 3.54. 14,23 The mean angle obtained in this study was 3.27 degrees ± 2.54. Such relatively narrow limits show a close relationship between the two planes.…”