Sulcular Bristle Tip Technique (SBTT) With an Electric Toothbrush

Inclusion Criteria: * At least 18 years of age * Subjects must show \> 20% buccal/lingual cervical sites with bleeding on probing (BoP) * Subjects must have \> 24 natural teeth excluding third molars * Subjects must have had a professional dental prophylaxis within three months of beginning the study * Subjects must be willing to brush with electric toothbrush twice daily. * Subjects who are randomized into Group 1 must be willing to be taught and to demonstrate the SBTT * Subjects who are randomized into Group 2 must be willing to follow the Sonicare DFU from Philips Oral Healthcare; however, will otherwise be uninstructed until after the study has been completed * Subjects must be willing to refrain from any oral hygiene for at least 12-18 hours prior to each study follow-up visit. Exclusion Criteria: * Subjects who use tobacco products * Subjects who are currently pregnant (self-reported) due to the greater bleeding tendency caused by hormonal changes * Subjects with fixed or removable orthodontic appliances * Subjects whose restorations violate or potentially violate the biologic width. * Subjects with irregular restoration margins or overhanging margins within 1mm of the crest of the marginal gingiva. * Antibiotic treatment at the time of the initial examination or during the month prior * Subjects with cervical probing depth \>3 mm * Subjects with systemic diseases that affect the gingiva * Subjects taking medications that affect the gingiva * Subjects who cannot read/write/speak English