Early Soft Tissue Healing Around One-Stage Dental Implants: Clinical and Microbiologic Parameters
- Autores: Samuel J. DeAngelo, Purnima S. Kumar, Frank M. Beck, Binnaz Leblebicioglu
- Localización: Journal of periodontology, ISSN 0022-3492, Vol. 78, Nº. 10, 2007, págs. 1878-1886
- Idioma: inglés
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Resumen
Background: Despite the potential significance of early soft tissue healing to long-term outcomes, this aspect of one-stage dental implants has not been investigated. The purpose of this prospective study was to characterize clinical and microbiologic parameters of early soft tissue healing around dental implants placed following a one-stage protocol.
Methods: Twenty-one patients (11 females and 10 males, aged 18 to 78 years; two smokers) needing a single implant were included. Clinical parameters included probing depth, buccal flap thickness, papilla height, and bleeding on probing. Subgingival plaque samples were obtained pre- and postoperatively and analyzed using molecular techniques.
Results: The newly formed peri-implant sulcus probing depth remained fairly stable from 4 to 12 weeks (P >0.05). There was no statistically significant association between flap thickness or papillary height and number of implant bleeding sites at 12 weeks (P >0.05). Detection of known periodontal pathogens was rare. Fusobacterium nucleatum was present in 17 patients prior to surgery, and 71% of them became carriers of this bacterium at the implant site by the second postoperative week. The number of F. nucleatum–positive subjects around the implant was significantly lower than the number of F. nucleatum–positive subjects around teeth (P <0.05).
Conclusions: Peri-implant soft tissue clinical maturity may be established as early as 4 weeks following implant placement by a one-stage surgical protocol; neither preexisting flap thickness nor papillary height seemed to influence newly forming peri-implant sulcus depth or bleeding on probing prevalence. For the most part, the newly created peri-implant crevices were colonized by specific bacteria within 2 weeks.
