The present studies evaluated the efficacy of a controlled-release biodegradable chlorhexidine (CHX) (2.5 mg) chip when used as an adjunct to scaling and root planing on reducing probing depth (PD) and improving clinical attachment level (CAL) in adult periodontitis. Two double-blind, randomized, placebo-controlled multi-center clinical trials (5 centers each) were conducted; pooled data are reported from all 10 centers (447 patients). At baseline, following 1 hour of scaling and root planing (SRP) in patients free of supragingival calculus, the chip was placed in target sites with PD 5 to 8 mm which bled on probing. Chip placement was repeated at 3 and/or 6 months if PD remained > or = 5 mm. Study sites in active chip subjects received either CHX chip plus SRP or SRP alone (to maintain study blind). Sites in placebo chip subjects received either placebo chip plus SRP or SRP alone. Examinations were performed at baseline; 7 days; 6 weeks; and 3, 6, and 9 months. At 9 months significant reductions from baseline favoring the chlorhexidine chip compared with both control treatments were observed with respect to PD (chlorhexidine chip plus SRP, 0.95 +/- 0.05 mm; SRP alone, 0.65 +/- 0.05 mm, P < 0.001; placebo chip plus SRP, 0.69 +/- 0.05 mm, P < 0.001) and CAL (chlorhexidine chip plus SRP, 0.75 +/- 0.06 mm; SRP alone, 0.58 +/- 0.06 mm, P < 0.05; placebo chip plus SRP, 0.55 +/- 0.06 mm, P < 0.05). The proportion of patients who evidenced a PD reduction from baseline of 2 mm or more at 9 months was significantly greater in the chlorhexidine chip group (19%) compared with SRP controls (8%) (P < 0.05). Adverse effects were minor and transient toothache, including pain, tenderness, aching, throbbing, soreness, discomfort, or sensitivity was the only adverse effect that was higher in the chlorhexidine group as compared to placebo (P = 0.042). These data demonstrate that the adjunctive use of the chlorhexidine chip results in a significant reduction of PD when compared with both SRP alone or the adjunctive use of a placebo chip. These multi-center randomized control trials suggest that the chlorhexidine chip is a safe and effective adjunctive chemotherapy for the treatment of adult periodontitis.
New data indicate that periodontal diseases are much more prevalent than previously thought, which means that there are large numbers of patients who will need to be diagnosed and treated for periodontal disease in a general dental practice. Oral hygiene procedures performed by patients between office visits are important for gingival health. No particular type of toothbrush has consistently been shown to have superior plaque-removal ability over another. Although studies on powered brushes have shown evidence for efficacy of biofilm removal and increased patient compliance, they are of short duration, making evaluation of long-term effects difficult to achieve. Interdental cleaning with dental floss can be effective but it is technique-sensitive. Interdental brushes have been shown to be superior to floss in plaque index scores, but not in gingival inflammation reduction. A systematic review of oral irrigation reported a beneficial adjunctive effect on bleeding and gingival indices and pocket depth. Antimicrobials in mouthrinses and toothpastes have shown significant reductions in plaque and gingivitis when used correctly. Even though it is considered essential for patients to utilize biofilm-removal techniques on a frequent basis, studies on adherence show that approximately 30-60% of health information is forgotten within 1 h, and 50% of health recommendations are not followed. Incorporating psychosocial aspects of behavioral change, including well-established counseling strategies, such as motivational interviewing, may elicit improved patient outcomes.
If one assumes that the data obtained in the Kansas City practices are representative of a larger geographic area, it indicates that dentistry may be failing to address issues of the timely diagnosis of periodontal disease, appropriate treatment, and/or timely referral for treatment.
A chief concern regarding distance education for the health professions is quality of the experience. Distance education has the potential for expanding student access, providing individualized instruction, and promoting active learning among geographically separated members of learning groups. Students and professors who have participated in distance learning platforms have expressed concerns about technical problems, inability to interact in real time with each other, and other frustrations related to this type of delivery. The Dental Hygiene program at the University of Missouri-Kansas City (UMKC) has addressed these issues and enhanced an already successful program by putting the professor, a technologist, and the student in the same space, at the same time, in real time. This enhancement has substantiated the ability of distance education to provide instruction among geographically separated members of learning groups, making it a plausible solution to the shortage of educators in healthcare professions. Citation Bray KSK, Gadbury-Amyot CC, Mitchell TV. Providing Advanced Degrees in Dental Hygiene via Computer Mediated Distance Learning: A Model Program. J Contemp Dent Pract 2006 November;(7)5:096-107.
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