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ePaper created 2017-06-02, 10:40:19 | version 1.38.0
P l a s m a e f f e c t o n a b u t m e n t s Use of argon plasma to enhance soft- tissue integration of prosthetic components: a randomized, controlled animal study Evandro Carneiro Martins Neto,a Luigi Canullo,b Marco Tallarico,b Luiz Antonio Salataa & Samuel P. Xaviera This paper aimed to assess histologically the soft- and hard-tissue chang- es after insertion of cleaned and activated titanium implant abutments. Abstract O b j e c t i v e a School of Dentistry of Ribeirão Preto, University of São Paulo, Ribeirão Preto, Brazil b Private practice, Rome, Italy C o r r e s p o n d i n g a u t h o r : Dr. Luigi Canullo Via Nizza 46 00198 Rome Italy T +39 06 8411980 M +39 347 6201976 luigicanullo@yahoo.com H o w t o c i t e t h i s a r t i c l e : Martins Neto EC, Canullo L, Tallarico M, Salata LA, Xavier SP. Use of argon plasma to enhance soft-tissue integration of prosthetic components: a randomized, controlled animal study. J Oral Science Rehabilitation. 2017 Jun;3(1):08–15. M e t h o d s Three months after tooth extractions, four implants were inserted in one side of the mandible. Before connecting the abutments to the implants, two of them were detoxified (test group), while two were left untreated (control group). The abutments were randomly placed on the two distal- ly or on the two mesially located implants. After one month, the same procedure was repeated on the other side of the mandible. The animals were euthanized one month after the last surgery. Histological analysis was performed to identify the shoulder of the implant, the most coronal bone-to-implant contact, the top of the adjacent bony crest, the top of the periimplant mucosa (PM) and the apical termination of the junction- al epithelium (AJE). R e s u l t s All of the animals remained in good health during the experimental period. No statistically significant differences were found between the test and control sites (p > 0.05). Between the first and the second time points, no statistically significant differences between the groups were found, ex- cept for PM–AJE of the test group, with higher values observed two months after implant placement. However, a trend of better marginal bone levels was found in the test group, compared with the control group, at the second time point. C o n c l u s i o n Although differences between the test and control groups failed to reach significance, a trend of better marginal bone levels was found at the test sites compared with the control sites. K e y w o r d s Argon plasma, soft-tissue adhesion, animal study, titanium abutment. 08 Volume 3 | Issue 2/2017 Journal of Oral Science & Rehabilitation