Consecutive Case Series of Healed Single-Molar Sites Immediately Restored with Wide-Diameter Implants: A 1-Year Evaluation.

Hadi Antoun,Pierre Cherfane,Bouchra Sojod

doi:10.1155/2016/5645892

Abstract

Introduction. To evaluate outcomes of wide-diameter (6 mm) implants immediately provisionalized with cement-retained single crowns in posterior molar sites. Materials and Methods. Forty-eight consecutive patients received a total of 53 moderately rough-surface, 6 mm diameter implants in healed sites. All implants were immediately provisionalized with a cement-retained provisional crown. Final prosthesis with cement-retained porcelain fused to metal crowns was delivered 3–6 months later. Patients were followed up for 1 year. Outcome measures were implant failures and success rate, complications, marginal bone levels, bone level changes, papilla index, bleeding on probing, and inflammation. Results. One patient was lost to follow-up. At one year, the implant survival and success rate were 98.1%. The mean marginal bone loss after 1 year was −0.17 ± 1.84 mm. Ideal papilla score was recorded at 83.8% of the sites. More than 95.6% of the sites showed no bleeding or inflammation. No procedure-related or device-related adverse events were reported. Conclusion. Wide-diameter (6 mm) implants can safely and successfully replace single posterior molars. Longer follow-up studies are necessary to evaluate the long-term success of these implants.

Highlights

To evaluate outcomes of wide-diameter (6 mm) implants immediately provisionalized with cement-retained single crowns in posterior molar sites
This study demonstrated a good overall cumulative implant survival rate 1 year after implant insertion using WD implants in support of immediate restorations in the posterior mandible or maxilla
The minimal crestal bone loss in this study was −0.20 mm after 1 year (Table 4), a result considerably better than the results reported in two other studies of moderately roughsurface TiUnite WD implants

Summary

Introduction

To evaluate outcomes of wide-diameter (6 mm) implants immediately provisionalized with cement-retained single crowns in posterior molar sites. Outcome measures were implant failures and success rate, complications, marginal bone levels, bone level changes, papilla index, bleeding on probing, and inflammation. Wide-diameter (6 mm) implants can safely and successfully replace single posterior molars. Longer follow-up studies are necessary to evaluate the long-term success of these implants. For a successful single-molar replacement, a balance between functional and parafunctional forces and the capacity of the implant to support prosthesis is critical; otherwise, increased load conditions can develop [5]. The few studies that investigated bone level changes around implants of a diameter of 6 mm or wider show that no implants had a dramatic bone loss extending past the first implant thread [8,9,10] or report a remodeling range of −0.24 mm to −0.04 mm [11,12,13]

Methods

Results

Discussion

Conclusion