Abstract

To investigate the association between the oro-facial implant position distance (ID) and facial bone crest thickness (FBCT) in single-tooth implant crowns (STIC) placed in the esthetic zone, and predict presence of facial bone above the implant shoulder and its impact on Pink and White Esthetic Score (PES and WES) and patient related outcome measurements (PROMS). In this cross-sectional study, all patients treated with STIC in esthetic zone between 2006 and 2013, with at least 12 months post-loading were invited to enroll. CBCTs were used to assess ID and FBCT. Esthetic outcomes included the PES and WES. PROMS measures included participants' satisfaction questionnaire with 13 formulated questions for this study. Descriptive statistics and ROC analysis were used. The association between ID, FBCT, esthetic outcomes and PROMS were calculated. Data was available for 60 implants. Mean ID was 2.02mm (SD=0.77). Mean FBCT at implant shoulder was 0.99mm (SD=0.98). FBCT was significantly associated with higher PES scores (P=0.040), but not with WES scores (P=0.149). FBCT was significantly associated with ID (P=0.009) and implants positioned ≥ 1.6mm palatal in relation to the adjacent teeth were likely to have higher FBCT. FBCT influences PES and is more predictable if implants are positioned ≥ 1.6mm palatal in relation to the adjacent teeth. Int J Prosthodont 2023. Doi: 10.11607/ijp.8052.

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