Effect of Bristle-less Toothbrush (PeriClean) on Gum Recession

Purpose: This randomized clinical trial tested if a novel bristle-less tooth brush design is more effective in preventing gingival recession in adults receiving periodontal maintenance than a soft tooth brush with nylon bristles.

Materials and methods: The investigators will recruit 23 subjects with gingival recession who received regular periodontal maintenance care at Western University of Health Sciences Dental Center, and who did not exhibit signs of acute dental and systemic disease, occlusal discrepancies and parafunctional habits. The investigators will randomly assign these subjects to two groups, one using a soft nylon-bristled tooth brush, and the other group using the experimental tooth brush that contains a brush head with short, soft, rubbery cones. Both groups will receive regular maintenance and periodontal exams by blinded examiners every 3-4 months measuring probing depth, bleeding on probing, plaque indices, and gingival recession. In addition, gingival recession will also be determined using a measuring guide on study models obtained with polyvinylsiloxane impressions. For added control of confounding variables, both groups will be supplied with abrasivity tooth paste and waxed floss while receiving repeated oral hygiene instruction and phone follow-up.

Inclusion criteria

• receive regular periodontal treatment at the Western University of Health Sciences Dental Center
• have facial gingival recession with at least 1 mm clinical attachment loss in the anterior region of their mouths

Exclusion criteria

• unable to provide consent
• had severe uncontrolled medical conditions resulting in an American Society of Anesthesiologist's Physical Status Class greater than 3
• acute pain or infection
• caries near the gingival margin
• restorations covering the gingival recession defect
• presence of Miller Class III or IV defects
• severe or aggressive periodontitis
• missing more than one anterior tooth
• severe malocclusion
• presence of occlusal trauma requiring more than limited adjustment
• Tobacco use
• ongoing or planned orthodontic therapy
• oral piercings
• history of bruxism, clenching, nail biting, holding pins with teeth, or gum scratching habits
• preferred use of an electric tooth brush over a manual brush