Clinical evaluation of early loaded and unloaded implants in edentulous mandible

Marginal Bone Loss Around One-Piece Implants: A 10-Year Radiological and Clinical Follow-up Evaluation

PURPOSE

This study was conducted to investigate one-piece narrow-diameter implants installed in maxillary lateral and mandibular incisor sites using immediate nonfunctional loading.

MATERIALS AND METHODS

In this 10-year clinical trial study, 42 narrow-diameter (3.0-mm) one-piece implants for 35 patients were inserted. Clinical and radiographic measurements were recorded in 10 years and analyzed statistically using t test.

RESULTS

A total of 26 patients (20 females and 6 males) with 30 implants were available for the 10-year follow-up. The 10-year implant survival rate was 100%. A statistically significant mean marginal bone loss was observed between 12 months and 10 years (0.18 ± 0.29 mm). The mean pocket depth increase was statistically significant (0.68 ± 0.83 mm). No bleeding on probing was observed around 90% of the implants. Full-mouth plaque index was registered at 20% of the implants.

CONCLUSION

The results obtained in this analysis suggest that modest marginal bone loss was observed around the implants. One-piece narrow-diameter implants (Maximus 3.0; BioHorizons) can predictably restore missing maxillary lateral incisors and mandibular incisors in cases of careful patient selection.

Randomized Controlled Trial Comparing the Effects of 2 Analgesic Drug Protocols in Patients who Received 5 Dental Implants

PURPOSE

This randomized controlled trial compares postoperative pain and swelling after placing dental implants in patients treated with nonsteroidal anti-inflammatory drugs (NSAIDs) versus NSAIDs and corticosteroids.

MATERIALS AND METHODS

Thirty patients received 5 dental implants each in the interforaminal region of the mandible. All patients were treated with ketorolac tromethamine 10 mg, 2 tablets daily for 2 days and amoxicillin 500 mg, 3 tablets daily for 7 days starting 24 hours before surgery. Experimental patients received an im injection of betamethasone 2 mL within 10 hours after surgery. Pain perception, intraoral inflammation (InIn), and extraoral inflammation (ExIn) data were collected 3, 7, and 14 days after surgery. Patients filled out a pain visual analog scale. InIn and ExIn were recorded by observing the existence of 7 signs.

RESULTS

One patient was excluded from control group. Pain perception, InIn, and ExIn were not different between groups at each time point. However, these variables were different from the previous time point within each group.

CONCLUSION

This study suggests that there is no difference in managing postoperative pain and swelling with betamethasone versus betamethasone and ketorolac.

Clinical efficacy of early loading versus conventional loading of dental implants

The aim of this study was to determine the clinical differences between early and conventional loading protocols for dental implants. A comprehensive search of the Medline, Embase, and OVID databases for studies published through January 10, 2015 was conducted. Fourteen studies were included in our analysis. We found that early loading imposed a significantly higher risk of implant failure than did conventional loading (risk ratio = 2.09, 95% confidence interval [CI] [1.18, 3.69], P = 0.01), while no significant differences between the methods were found with regards to the marginal bone loss (weighted mean differences [WMD] = 0.11, 95% CI [-0.07, 0.28], P = 0.23), periotest value (WMD = 0.02, 95% CI [-0.83, 0.87], P = 0.96), or implant stability quotient (WMD = 0.79, 95% CI [-0.03, 1.62], P = 0.06). As for the health status of the peri-implant tissue, conventionally loaded implants demonstrated better performance than did early loaded implants. Subgroup analyses demonstrated that the sample size, time of publication, loading definition, implant position, extent, and restoration type influenced the results. Although early implant loading is convenient and comfortable for patients, this method still cannot achieve the same clinical outcomes as the conventional loading method.