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Potential Effect of 2% Chlorhexidine Gel in the Implant Screw Hole on Bacterial Count

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Abstract (2. Language): 
Background: Microbial penetration inside the implant’s internal hole creates a bacterial reservoir that is related with an area of inflamed connective tissue opposite the fixture-abutment junction and this can affect with the health of the peri-implant tissue. Chlorhexidine (CHX) has been used to prevent internal implant contamination as a 0.2% solution, a varnish or gel. Aim: To evaluate the aerobic/anaerobic bacterial count-reduction potential of 2% CHX gel placed, at the time of surgery, in the implant screw hole over a period of minimum 90 d, and to monitor the periodontal health status of all patients, throughout the study. Material and methods: Ten partially edentulous patients received 30 DI and these implants were randomly allocated in to: Group I (test) 15 implants applied by flap or flapless surgery with 2% CHX gel application. Group II (control) 15 implants applied by flap or flapless surgery without CHX gel application. All patients were examined clinically to determine their oral health status by examination of their plaque index, PLI, Gingival index GI, Bleeding on probing, BOP, and probing pocket depth, PPD, every two weeks throughout the study. Three months later, the plaque sample was collected from the internal hole of fixture and was sent for bacteriological examination. Results: The present study shows highly significant reduction of aerobic count of bacteria from 52.1% to 100%. Also, anaerobic bacterial count was reduced from 64.6% to 100% for group that received 2% CHX gel in screw hole of implants at time of surgery. When compared, the count of aerobic and anaerobic bacteria (CFU) between test and control group, a significant reduction was found. Conclusion: The use of 2% CHX gel at the time of placement can significantly reduce bacterial counts in the implant screw hole, and this effect can be maintained for 90 d or longer.
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REFERENCES

References: 

[1] Jung, E. Ronald, et al. “Systematic review of the survival rate and the incidence of biological, technical, and
aesthetic complications of single crowns on implants reported in longitudinal studies with a mean follow‐up of
5 years.” Clinical Oral Implants Research Vol. 23.s6, 2012, pp. 2-21.
[2] El-Askary, Abd El Salam. Reconstructive Aesthetic Implant Surgery. Wiley-Blackwell, 2003.
[3] Persson, L.G., et al. “Bacterial colonization on internal surfaces of Brånemark system® implant
components.” Clinical Oral Implants Research Vol. 7, No. 2, 1996, pp. 90-95.
[4] Lang, Niklaus P., and Sture R. Nyman. “Supportive maintenance care for patients with implants and advanced
restorative therapy.” Periodontology 2000 Vol. 4, No. 1, 1994, pp. 119-26.
[5] Duarte, Antonio RC, et al. “In vitro sealing ability of two materials at five different implant-abutment
surfaces.” Journal of Periodontology Vol. 77, No. 11, 2006, pp. 1828-32.
[6] Rimondini, Lia, et al. “Internal contamination of a 2-component implant system after occlusal loading and
provisionally luted reconstruction with or without a washer device.” Journal of Periodontology Vol. 72, No. 12,
2001, pp. 1652-57.
[7] Groenendijk, Edith, et al. “Microbiological and clinical effects of chlorhexidine enclosed in fixtures of
3I-Titamed® implants.” Clinical Oral Implants Research Vol. 15, No. 2, 2004, pp. 174-79.
[8] Besimo, Christian E., et al. “Prevention of bacterial leakage into and from prefabricated screw-retained crowns
on implants in vitro.” International Journal of Oral and Maxillofacial Implants Vol. 14, No. 5, 1999, pp. 654-60.
[9] Löe, Harald, and C. Rindom Schiøtt. “The effect of mouthrinses and topical application of chlorhexidine on the
development of dental plaque and gingivitis in man.” Journal of Periodontal Research Vol. 5, No. 2, 1970, pp. 79-83.
[10] Sheen, S., and M. Addy. “An in vitro evaluation of the availability of cetylpyridinium chloride and chlorhexidine
in some commercially available mouthrinse products.” British Dental Journal Vol. 194, No. 4, 2003, pp. 207-10.
[11] Silness, John, and Harald Löe. “Periodontal disease in pregnancy II. Correlation between oral hygiene and
periodontal condition.” Acta Odontologica Scandinavica Vol. 22, No. 1, 1964, pp. 121-35.
[12] Löe, Harald. “The gingival index, the plaque index and the retention index systems.” Journal of Periodontology Vol.
38, No. 6 Part II, 1967, pp. 610-16.
[13] Salvi, Giovanni E., et al. “One-year bacterial colonization patterns of Staphylococcus aureus and other bacteria
at implants and adjacent teeth.” Clinical Oral Implants Research Vol. 19, No. 3, 2008, pp. 242-48.
Ali, et al. Int J Med Res Health Sci 2017, 6(11): 125-132
132
[14] Newman, Michael G., et al. Carranza’s clinical periodontology. Elsevier Health Sciences, 2011.
[15] Hahn, Jack. “Single-stage, immediate loading, and flapless surgery.” Journal of oral Implantology Vol. 26, No.
3, 2000, pp. 193-98.
[16] Shahabouee, Mohammad, et al. “Microflora around teeth and dental implants.” Dental Research Journal Vol.
9, No. 2, 2012, p. 215.
[17] Cosyn, Jan, et al. “The peri-implant sulcus compared with internal implant and suprastructure components: A
microbiological analysis.” Clinical Implant Dentistry and Related Research Vol. 13, No. 4, 2011, pp. 286-95.
[18] Do Nascimento, C., et al. “Bacterial diversity of periodontal and implant-related sites detected by the DNA
Checkerboard method.” European Journal of Clinical Microbiology & Infectious Diseases Vol. 30, No. 12, 2011,
pp. 1607-13.

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