Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
The purpose of this study is to evaluate the effect of increased/decreased occlusal vertical dimension (OVD) on lower facial form and lip position, to analyze variations across gender groups and to analyze variations across age groups.
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Occlusal Vertical Dimension Modification (-4mm) | Experimental |
| |
| Occlusal Vertical Dimension Modification (-2 mm) | Experimental |
| |
| Occlusal Vertical Dimension Modification (0 mm) | Experimental |
| |
| Occlusal Vertical Dimension Modification (+2mm) | Experimental |
| |
| Occlusal Vertical Dimension Modification (+4mm) | Experimental |
|
| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Occlusal Vertical Dimension Modification (-4mm) | Device | Participants will undergo fabrication and placement of removable bite splints designed to alter occlusal vertical dimension (OVD). On each side, four discrete reference points will be marked at the lowest point of the orbital margin and the highest point of the external auditory meatus using Whip-Mix reference plane marker.The subject's head position will be leveled with EZ bow laser level device and -4mm OVD color coded bite splints will be randomly placed in position. An image with desktop facial scanner will be taken. |
| Measure | Description | Time Frame |
|---|---|---|
| Maxillary central incisor length | From time of denture placement to about 24 hours after denture placement (depending on patient availibity) | |
| Interlabial gap height | From time of denture placement to about 24 hours after denture placement (depending on patient availability) | |
| Intercommisural width | denture placement to about 24 hours after denture placement (depending on patient availability) | |
| Distance from Maxillary incisal edge to upper lip in millimeters | denture placement to about 24 hours after denture placement (depending on patient availability) | |
| Distance from Maxillary incisal edge to lower lip in millimeters | denture placement to about 24 hours after denture placement (depending on patient availability) | |
| Upper lip length | denture placement to about 24 hours after denture placement (depending on patient availability) | |
| Upper lip vermilion height | denture placement to about 24 hours after denture placement (depending on patient availability) | |
| Lower lip vermilion height | denture placement to about 24 hours after denture placement (depending on patient availability) | |
| The upper lip margin on the central incisor to the gingival margin of maxillary central incisor |
| Measure | Description | Time Frame |
|---|---|---|
| Maxillary central incisor length | denture placement to about 24 hours after denture placement (depending on patient availability) | |
| Interlabial gap height | denture placement to about 24 hours after denture placement (depending on patient availability) |
Not provided
Inclusion Criteria:
-Complete edentulous with complete dentures or overdentures
Exclusion Criteria:
Not provided
Not provided
Not provided
Not provided
| Name | Role | Phone | Extension | |
|---|---|---|---|---|
| Maria D Gonzalez, DDS, MS | Contact | (713) 486-4577 | Maria.D.Gonzalez@uth.tmc.edu | |
| Chun-Yeh Chien | Contact | (713) 486-4274 | Chun-Yeh.Chien@uth.tmc.edu |
| Name | Affiliation | Role |
|---|---|---|
| Maria D Gonzalez, DDS, MS | The University of Texas Health Science Center, Houston | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| The University of Texas Health Science Center at houston | Houston | Texas | 77030 | United States |
Not provided
Not provided
Not provided
Not provided
Not provided
Not provided
All participants will get all 5 sizes of splints and the order of receipt of each size will be randomized
Not provided
Not provided
Not provided
|
| Occlusal Vertical Dimension Modification (-2 mm) | Device | Participants will undergo fabrication and placement of removable bite splints designed to alter occlusal vertical dimension (OVD). On each side, four discrete reference points will be marked at the lowest point of the orbital margin and the highest point of the external auditory meatus using Whip-Mix reference plane marker.The subject's head position will be leveled with EZ bow laser level device and -2mm OVD color coded bite splints will be randomly placed in position. An image with desktop facial scanner will be taken. |
|
| Occlusal Vertical Dimension Modification (0 mm) | Device | Participants will undergo fabrication and placement of removable bite splints designed to alter occlusal vertical dimension (OVD). On each side, four discrete reference points will be marked at the lowest point of the orbital margin and the highest point of the external auditory meatus using Whip-Mix reference plane marker.The subject's head position will be leveled with EZ bow laser level device and 0mm OVD color coded bite splints will be randomly placed in position. An image with desktop facial scanner will be taken. |
|
| Occlusal Vertical Dimension Modification (+2mm) | Device | Participants will undergo fabrication and placement of removable bite splints designed to alter occlusal vertical dimension (OVD). On each side, four discrete reference points will be marked at the lowest point of the orbital margin and the highest point of the external auditory meatus using Whip-Mix reference plane marker.The subject's head position will be leveled with EZ bow laser level device and +2mm OVD color coded bite splints will be randomly placed in position. An image with desktop facial scanner will be taken. |
|
| Occlusal Vertical Dimension Modification (+4mm) | Device | Participants will undergo fabrication and placement of removable bite splints designed to alter occlusal vertical dimension (OVD). On each side, four discrete reference points will be marked at the lowest point of the orbital margin and the highest point of the external auditory meatus using Whip-Mix reference plane marker.The subject's head position will be leveled with EZ bow laser level device and +4mm OVD color coded bite splints will be randomly placed in position. An image with desktop facial scanner will be taken. |
|
| denture placement to about 24 hours after denture placement (depending on patient availability) |
| The lower lip margin on the central incisor to the gingival margin of mandibular central incisor | denture placement to about 24 hours after denture placement (depending on patient availability) |
| Intercommisural width | denture placement to about 24 hours after denture placement (depending on patient availability) |
| Maxillary incisal edge to upper lip | denture placement to about 24 hours after denture placement (depending on patient availability) |
| Maxillary incisal edge to lower lip | denture placement to about 24 hours after denture placement (depending on patient availability) |
| Upper lip length | denture placement to about 24 hours after denture placement (depending on patient availability) |
| Upper lip vermilion height | denture placement to about 24 hours after denture placement (depending on patient availability) |
| Lower lip vermilion height | denture placement to about 24 hours after denture placement (depending on patient availability) |
| The upper lip margin on the central incisor to the gingival margin of maxillary central incisor | denture placement to about 24 hours after denture placement (depending on patient availability) |
| The lower lip margin on the central incisor to the gingival margin of mandibular central incisor | denture placement to about 24 hours after denture placement (depending on patient availability) |