Interdental Plaque Reduction and Periodontitis
Condition: Periodontitis
MeSH terms: Periodontitis
Study type: Interventional

Summary: 
      To determine the efficacy of four different oral hygiene protocols involving adjunctive
      interdental cleaning devices in periodontal patients in terms of plaque and gingival
      inflammatory scores.
    

Detailed description: 
      Patients included in the study will undergo a thorough clinical examination aiming at
      collecting all the data desired: periodontal parameters of Probing Pocket Depth (PPD),
      presence of recession of the gingival margin (Rec) and full mouth plaque score (FMPS) will be
      recorded on six sites/tooth by a single calibrated examiner using a University of North
      Carolina (UNC) 15-mm periodontal probe by a calibrated examiner blind to group allocation.

      Gingival index (GI) and angulated bleeding score (AngBS) will be recorded at four
      sites/tooth.

      For GI the following scale will be used:

      0 normal appearance of gingiva, no bleeding, no inflammation;

        1. slight change and moderate edema with slight change in texture, no bleeding, mild
           inflammation;

        2. redness hypertrophy, or edema and glazing, bleeding on probing, moderate inflammation;

        3. marked redness, hypertrophy, or edema, ulceration, spontaneous bleeding, severe
           inflammation.

      For AngBS the following scale will be used:

      0: no bleeding;

        1. bleeding upon probe stimulation;

        2. spontaneous bleeding

      Consequently, interdental plaque score (IPS), interdental gingival index (IGI), and
      interdental angulated bleeding score (IAngBI) will be calculated.

      Patients will be followed through a five-week period. The timepoints will be the following: T
      -7 (oral hygiene instructions), T0 (professional supragingival scaling and polishing), T14,
      T28.
    

Intervention name(s): Interdental Oral Hygiene Instruction (Int-OHI); One session of professional supragingival scaling and polishing; Oral Hygiene Instruction (OHI)
Intervention type(s): Behavioral; Procedure; Procedure
Intervention description(s): Int-OHI will be given focusing on the interdental device of the allocated group for each patient and will be given only once at timepoint T-7. No further formal Int-OH instructions will be given, unless specifically asked by the patient.
Int-OHI will be delivered by trained dental hygienist/periodontist.; A session of professional supragingival scaling and polishing: instrumentation will be performed by a trained dental hygienist/periodontist with great care in performing exclusively coronal maneuver. No instrumentation or exploring of the gingival crevice/ sulcus will be performed.; OHI will be given focusing on manual toothbrushing and will be given only once at timepoint T-7. No further formal OH instructions will be given, unless specifically asked by the patient.
OHI will be delivered by trained dental hygienist/periodontist.
Allocation: Randomized
Intervention model: Parallel Assignment
Intervention model description: Single-centre randomized, parallel design, clinical trial with a five-week follow-up
Masking: Double (Investigator, Outcomes Assessor)
Primary purpose: Prevention