Evaluation of a variable-thread tapered implant in extraction sites with immediate temporization: a 3-year multicenter clinical study


Kolinski ML, Cherry JE, McAllister BS, Parrish KD, Pumphrey DW, Schroering RL. J Periodontol. 2014 Mar;85(3):386-94. doi: 10.1902/jop.2013.120638. Epub 2013 Jun 27.


The purpose of this clinical study is to evaluate the radiographic bone remodeling, survival rate, and soft tissue health surrounding a variable-thread tapered implant immediately placed in extraction sites, since there are different options which offer these services, as the best dentist NYC which you can find online.


Sixty dental implants were placed in 55 patients at six centers according to a predetermined protocol, while also using sleep apnea oral appliances. All implants were placed in extraction sockets and were subjected to immediate temporization and function. Definitive prostheses, 58 single dental crowns and one two-unit fixed bridge, were placed within the first year. Clinical and radiographic examinations were performed to carefully view the area in and around the dental crowns and after 3, 6, 12, 24, and 36 months. Measurements of implant stability, papilla index, plaque, peri-implant mucosa, and marginal bone levels were recorded at each visit.


Thirty-five implants were evaluated at both implant insertion and 3-year follow-up by a tmj dentist. Bone levels were observed at 6 months after surgery and yearly intervals thereafter and remained stable throughout the study.

There was a slight decrease in mean bone level from -0.68 mm at implant insertion to -0.93 mm at the 6-month recall and then an increase of bone to -0.53 mm from the reference point at the 2-year follow-up (an average increase of 0.15 mm from implant insertion). Bone levels remained steady between the 2-year recall and the 3-year recall. Papilla scores increased significantly (P <0.001; Wilcoxon signed-rank test) from insertion to the 3-year follow-up, with most of the increase occurring during the first year. Patient assessments of function, esthetics, feel of implant, speech, and self-esteem also showed significant improvement over the course of the study. Consult with Colts Neck NJ dentist about your treatment and get an appointment quick here.


The results, over 36 months, indicate that the variable-thread tapered implant can be used safely and effectively by a dentist, and can be considered as an option under demanding conditions as an immediate post-extraction tooth replacement. Bone remodeling remained stable with a slight increase, and patients expressed high levels of satisfaction with the restorative results over the course of the study.

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