Dental Plaque Control – Quick Review

Plaque: Definition & Risks

  • Soft, clear, sticky biofilm adhering to teeth & oral tissues

  • Composed of bacteria, their by-products, saliva proteins

  • Accumulates mainly at gingival margin, sulcus, embrasures

  • Removable only by mechanical cleaning

Objectives of Plaque Control

  • Major goal of plaque control is to keep the teeth clean and maintain good oral tissue health by eliminating the pathogenic products of dental plaque organisms

Mechanical Plaque Control

  • Toothbrushing and toothbrushing techniques : toothbrush, toothbrushing techniques, frequency of toothbrushing, electrical toothbrush 

  • Interdental cleansing aids : dental floss and flossing techniques, toothpick, interdental brush 

  • Other oral hygiene aids 

Toothbrushing

  • Aims: disrupt plaque, deliver fluoride, improve esthetics/odor

  • Brush selection:

    • Small head (≈10\times30\,\text{mm}), multi-tufted, soft, round-ended nylon bristles (≈10\,\text{mm} long, 0.2!–!0.3\,\text{mm} diameter)

    • Manual, powered, sonic/ultrasonic, ionic options

  • Techniques (none proven superior; choose one & perform systematically):

    • Bass: bristles 45^\circ to long axis, gentle vibratory strokes in sulcus

    • Modified Stillman: 45^\circ on gingiva–cervix, vibrate then sweep occlusally

    • Charters: 90^\circ or 45^\circ occlusally, circular vibratory

    • Roll/Fones/Horizontal scrub (soft brush) for specific needs/children

  • Frequency: at least twice daily to control caries & maintain healthy periodontium

  • Replacement: every 3!–!4 months or when bristles fray

  • Electric brushes: similar efficacy; useful for children, elderly, handicapped, poorly motivated

Interdental Aids

  • Dental floss (waxed/unwaxed, tape, super-floss)

    • Spool & loop methods; 8-10 up-down strokes per surface

    • Holders/threads assist dexterity-limited users

  • Toothpicks: for open embrasures; insert obliquely, back-and-forth motion

  • Interdental brushes (cylindrical/spiral, single-tufted): for wide or inaccessible areas; insert apically, in-out action

  • Other aids: gauze strips, rubber tips, floss threaders

Chemical Plaque Control

Dentifrices (Toothpastes)

  • Abrasives for mechanical removal; therapeutic agents (e.g., stannous fluoride, zinc citrate, triclosan)

Mouth Rinses

  • Mainly supragingival effect

  • Chlorhexidine 0.12!–!0.2\%: bacteriostatic/bactericidal; short-term only (<2 wks); side effects—staining, taste change, mucosal desquamation

  • Fluoride rinses: daily 15!–!20\,\text{ml} for ≈20 s; no eating/drinking 30 min

  • Prefer alcohol-free formulations

Oral Irrigators

  • Deliver fluids to target sites; adjunct for hospitalized/bed-ridden patients

Establishing a Plaque Control Program

  • Reinforce patient motivation & ownership

  • Use visual aids, tactile “clean” feeling

  • Encourage active participation; teach one concept at a time

Key References (for deeper study)

  • Oxford Handbook of Clinical Dentistry (Mitchell & Mitchell)

  • Essentials of Dental Caries (Kidd & Joyston-Bechal)

  • Clinical Practice of the Dental Hygienist (Wilkins)