The Effect of Crown Height and Retentive Height of Abutment on the Fracture Resistance of Fatigued Monolithic Zirconia Anterior Implant Crowns—An In Vitro Study

Key Points

• This research aims to evaluate how crown height and retentive height of abutments affect the fracture resistance of zirconia implant crowns.
• In vitro testing of zirconia anterior implant crowns under controlled load conditions.
• Comparison of various crown and retentive heights on mechanical performance.
• Shorter crowns exhibited greater load at failure and better survival rates.
• Retentive height had minimal impact but worked better with shorter crowns, enhancing mechanical performance.