IADR Abstract Archives
A Clinical Observation of Lateral-Partial-Veneer Applied to Improve Horizontal Restorative Space for Implant-Crown
Objectives: To evaluate the esthetic improvement results of adjacent partial veneer applied in implant-supported single crown cases with excessive horizontal restorative space and refusing orthodontic treatment.
Methods: Three patients with single missing anterior tooth and with excessive horizontal edentulous space that was 2-3mm wider than contralateral homonymous natural tooth were restored by implant-supported single crown (Wieland, Germany). Because orthodontic treatment refused by patients, the plan was taken into consideration that lateral partial veneer used for adjacent tooth to modify the horizontal edentulous space in order to obtain symmetric beauty results of anterior teeth. The two adjacent teeth near edentulous space were roughened and prepared within the enamel depth of 0.5-0.7 mm by using TR-12 diamond rotary instrument (MANI, Japan). The finishing line was designed as chamfer shoulder and extended from the mesial 1/3 of lingual surface to the mesial developmental groove on the labial surface, covering mesial surface. One of the patients asked a direct composite veneer by using CLEARFIL Self-Etching bond and AP-X (CLEARFIL, Japan), the other two patients chose the indirect porcelain veneer by using IPS E-max Press (Ivoclar-Vivadent, Liechtenstein) and dual-cure resin cement Variolink II (Ivoclar-Vivadent, Liechtenstein) for bonding. Then implant-supported single crown was made and finished as usual. A 2-year clinical observation was performed about both single implant crown and two partial veneers of adjacent teeth, including de-bonding，fracture, marginal fit, periodontal status, anatomical form and color matching.
Results: After a 2-year follow-up, the survival rate was 100%. None of the restorations were found de-bonding, fractures, marginal discoloration, gingivitis or gingival recession. The width and color of implant-supported single crown was in harmony with adjacent teeth.
Conclusions: Minimally-invasive partial lateral veneer can be a good choice in implant cases to modify the excessive horizontal space and obtain a better esthetic result.
Methods: Three patients with single missing anterior tooth and with excessive horizontal edentulous space that was 2-3mm wider than contralateral homonymous natural tooth were restored by implant-supported single crown (Wieland, Germany). Because orthodontic treatment refused by patients, the plan was taken into consideration that lateral partial veneer used for adjacent tooth to modify the horizontal edentulous space in order to obtain symmetric beauty results of anterior teeth. The two adjacent teeth near edentulous space were roughened and prepared within the enamel depth of 0.5-0.7 mm by using TR-12 diamond rotary instrument (MANI, Japan). The finishing line was designed as chamfer shoulder and extended from the mesial 1/3 of lingual surface to the mesial developmental groove on the labial surface, covering mesial surface. One of the patients asked a direct composite veneer by using CLEARFIL Self-Etching bond and AP-X (CLEARFIL, Japan), the other two patients chose the indirect porcelain veneer by using IPS E-max Press (Ivoclar-Vivadent, Liechtenstein) and dual-cure resin cement Variolink II (Ivoclar-Vivadent, Liechtenstein) for bonding. Then implant-supported single crown was made and finished as usual. A 2-year clinical observation was performed about both single implant crown and two partial veneers of adjacent teeth, including de-bonding，fracture, marginal fit, periodontal status, anatomical form and color matching.
Results: After a 2-year follow-up, the survival rate was 100%. None of the restorations were found de-bonding, fractures, marginal discoloration, gingivitis or gingival recession. The width and color of implant-supported single crown was in harmony with adjacent teeth.
Conclusions: Minimally-invasive partial lateral veneer can be a good choice in implant cases to modify the excessive horizontal space and obtain a better esthetic result.