Early histological, microbiological, radiological, and clinical response to cemented and screw-retained all-ceramic single crowns

Clinical Oral Implants Research
Daniel S ThomaI Sailer

Abstract

To assess the early histological, microbiological, radiological, and clinical response to cemented and screw-retained all-ceramic single-tooth implant-supported reconstructions. Patients with single-tooth implants were randomly allocated to receive a cemented lithium disilicate crown on a customized zirconia abutment (CEM) or a screw-retained crown with a directly veneered zirconia abutment (SCREW). At the screening visit, at crown insertion and at the 6-month follow-up, clinical parameters were measured at the implant and the contralateral tooth. Marginal bone levels, technical parameters, and esthetic outcomes were measured at the implants. At the 6-month follow-up, a microbiological test was performed and a soft tissue biopsy was harvested at the implants for histological analysis. Inflammatory cells and fibroblasts/-cytes were analyzed at the level of the sulcular epithelium, junctional epithelium, and connective tissue. The histological parameters were analyzed by means of a linear mixed model. Thirty-three patients completed the study, and implant and crown survival rates were 100% at 6 months. Histologically, the number of inflammatory cells tended to be higher in group CEM (p > 0.05). Moreover, significantly less inflam...Continue Reading

References

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Citations

May 31, 2020·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Mohammad A Al-Rabab'ahHugh Devlin
Mar 18, 2020·Journal of Prosthodontics : Official Journal of the American College of Prosthodontists·Alexandra TsigaridaCarlo Ercoli
Jul 21, 2021·International Journal of Implant Dentistry·Felix DähneElisabeth Prause

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