Peri-implant mucositis is a reversible inflammatory condition primarily caused by biofilm accumulation around dental implants. Effective plaque control is essential for disease resolution; however, the influence of toothbrush bristle design on plaque removal around implant-supported prostheses remains unclear. Polybutylene terephthalate (PBT) tapered-end bristles are more flexible than conventional medium-textured bristles and may improve access to peri-implant areas while increasing patient comfort. This study aims to compare the effectiveness of a PBT tapered-end toothbrush and a medium-textured toothbrush in plaque removal, peri-implant bacterial load reduction, and patient-reported outcomes in individuals with peri-implant mucositis. Each participant will use both toothbrushes in a randomized sequence separated by a six-week washout period. Visible plaque will be disclosed and quantified using standardized photographic analysis based on the Rustogi Modified Navy Plaque Index. Absolute and relative peri-implant bacterial loads of Porphyromonas gingivalis and Fusobacterium nucleatum, together with total bacterial load, will be quantified by quantitative polymerase chain reaction. Patient satisfaction, including perceived discomfort, comfort, ease of handling and intention to use, will be assessed using visual analogue scales.
Study Type
INTERVENTIONAL
Allocation
RANDOMIZED
Purpose
SUPPORTIVE_CARE
Masking
SINGLE
Enrollment
16
Plaque removal with a Polybutylene terephthalate (PBT) tapered-end toothbrush
Hospital Odontològic Universitat de Barcelona
L'Hospitalet de Llobregat, Barcelona, Spain
Changes in the number of plaque-stained surfaces
Time frame: Inmediately after the intervention
Satisfaction questionnaire scores
Several visual analogue scales (VAS) going from 0 to 10 points will be handled, being 10 the highest score, regarding "Discomfort", "Ease of use" and "Comfort"
Time frame: Inmediately after the intervention
Absolute and relative counts of Porphyromonas Gingivalis and Fusobacterium Nucleatum
Time frame: When the microbiological samples were analyzed
Total bacterial load quantified using universal 16S rDNA primers
Time frame: When microbial samples were analyzed
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