STUDY OBJECTIVES AND METHODS
The purpose of this study was to assess whether the type of surface finish (glazed or polished) of monolithic zirconia single crowns impacts the health of peri -implant soft tissues during the first 6 months of clinical function. Infrared thermography waemployed to assess soft tissue conditions. This was a prospective, randomized, intra -participant clinical trial. Twenty single crowns, supported by posterior implants, were fabricated in monolithic zirconia using computer -aided design/computer -aided manufacturing. For each crown, the mesial and distal surfaces were randomly allocated to receive either a glazed or a polsurface finish. Data were collected at 7 (T1) and 180 days (T2) following crown placement, using clinical examinations (assing pain/discomfort, biofilm formation, bleeding, inflammation, and suppuration) and infrared thermography (to record thermvalues in Celsius). The data were analyzed using both descriptive and inferential statistics.
RESULTS
- No significant clinical differences in peri -implant soft tissue health were identified between the glazed and polished surface treatments at T1, T2, or across the evaluation period.
- Infrared thermography revealed a significant decrease in temperature from T1 to T2 for some polished and/or gsubgroups when comparing the peri -implant mucosal phenotype, dental arch, and tooth regions. However, no significant differences were observe d between the polished and glazed groups.
CONCLUSIONS
Both glazing and polishing are suitable surface treatments for monolithic zirconia and do not adversely affect peri -implant soft tissue health within 6 months after crown installation. Infrared thermography has the potential to be a complementary tr the objective evaluation of soft tissue healing. Adapted from Douglas Blum Segallaet al., J Adv Prosthodont. 2025 Oct;17(5):259 -268, for more info about this publication, click HERE.
This review is part of the Straumann "Scientific Highlights Newsletter 6/25".
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