Prevention of Oral Disease – 2

1. Prevention of Oral Disease – 2 Dr Omar Alkaradsheh

2. Reference Prevention of Oral Disease Murray, Nunn, Steele 4th Edition 2003

3. Aims and Objectives of Course • knowledge and confidence to incorporate the theories of prevention into patient care and treatment planning • Use of evidence-based practices in prevention of oral diseases • Identifying different risk groups to give patients the best care possible

4. Course Outline • Prevention of Periodontal Disease • Prevention of Tooth Wear - Erosion • Prevention of Dental Trauma • Prevention of Oral Mucosal Diseases • Prevention in the Ageing Dentition • Preventing an Impairment • Preventing Non-Accidental Injury • Introduction to Dental Public Health

5. Prevention of Periodontal Disease – 1Mechanical Plaque Control Dr. Omar Alkaradsheh

6. Aims • Aetiology • Implications and importance of preventing periodontal disease • Preventive methods • Mechanical plaque removal • Chemical plaque removal

7. Periodontal Disease • Group of infections that affect the supporting structures of the teeth • Gingivitis – inflammation restricted to the gingival marginal • Periodontitis – resorption of the supporting connective tissue attachment and apical migration of the junctional epithelia

8. What causes Periodontal Disease? DENTAL PLAQUE Non mineralized, bacterial aggregation on the teeth and other solid structures in the mouth bacterial cells(70%) protein extracellular polysaccharides epithelial cells white blood cells

9. Dental Calculus? • Result of mineralization within plaque (70-90% inorganic content) • Not in itself causative of periodontal disease • provides a rough PLAQUE retaining surface • distorts the gingival crevice and increases stagnation areas – allows greater bacterial proliferation within the crevice

10. Factors affecting PD • Local factors • Host factors

11. Local factors that increase plaque accumulation Iatrogenic • Rough surfaces • Overhanging restorations • Removable partial dentures • Fixed orthodontic appliances • Space maintainers (band and loop, etc.)

12. Host Factors modifying the immune response • Smoking Periodontitis is 2 – 5 times more severe amongst smokers compared to non-smokers • Nicotine • Diabetes (type 1 and 2) 2 - 3 fold increase risk of periodontitis • related to degree of diabetic control, presence of complications and duration of the syndrome

13. Aims • Aetiology • Implications and importance of prevention • Preventive methods • Mechanical plaque removal • Chemical plaque removal

14. Implications for prevention • Chronic gingivitis is reversible if effective plaque control is introduced • GINGIVITIS and PERIODONTITIS can be prevented by adequate plaque control • Preventive strategy should be customized for each individual – variation in susceptibility

15. Why prevention is important? • Gingivitis is common in both children and adults Children - 26%- 63% (UK Children Dental Health Survey, 1993) Adults – almost 100% 1 mm attachment/bone loss Prevalence and severity of PD increases with age

16. Why prevention is important (cont) 2. Important cause of toothloss Scotland - 55% caries 17% PD 3. Time-consuming and difficult to treat 4. Potential source of systemicbacteraemia • Infective Endocarditis, coronary heart disease • Stroke • Low-birth weight preterm infants • Diabetes

17. Aims • Aetiology • Importance of preventing periodontal disease • Preventive methods • Mechanical plaque removal • Chemical plaque removal

18. Mechanical Plaque Control

19. Mechanical Plaque Control • Self Care • Toothbrushing • Interdental cleaning • Professional • Scaling/Root planing • Polishing

20. Toothbrushes • The first true bristled brush was invented in China in 1498 for the Emperor using animal hair (pigs) • By the early 1800’s bristled brushes were in general use • Nylon bristles were introduced around 1938 • 1960’s – development of power toothbrushes (electric)

21. Requirements of a Satisfactory Toothbrush • Have good cleaning ability • Cause minimal damage to soft and hard dental tissues • Having a reasonable lifespan (good wear characteristics) • Non-toxic

22. Manual toothbrushes • Handle size appropriate to the user’s age and dexterity • Head size appropriate for the user’s mouth • Adult – 2.5 cm • Child – 1.5 cm

23. Compact arrangement of soft, end rounded nylon filaments not larger than 0.009 inches in diameter • Hard brushes should never be recommended • lacerate the gingiva, gingival recession and tooth abrasion • Diameter is too large to enter the gingival crevice

24. Bristle patterns that enhance plaque removal in approximal spaces and along gum margin Filaments arranged at different heights and angles significantly more effective at reducing plaque and gingivitis than flat trim brushes (Balanyk et al., 1993)

25. Requirements of a Satisfactory Brushing Technique • Technique should clean all tooth surfaces, especially interdental and gingival crevice • Movement ofthe brush should not injure the soft or hard tissues • Simple and easy to learn • Well-organized so that each part of the dentition is brushed in turn and no area overlooked

26. Brushing Techniques • Vertical • Horizontal • Roll Technique • Vibrating (Bass, Stillman, Charter) • Circular • Scrub

27. Brushing Technique Bass technique most recommended by dentists

28. Brushing Technique • Bass technique • aims to clean the gingival crevice • brush held at 45° to the axis of the teeth so that the end pointing into the gingival crevice

29. Brushing Techniques • Research shows no particular method superior to any other • Modify the patients method • Emphasize need to repeat the procedure on all tooth surfaces

30. Powered toothbrushes • Oscillating, rotating or counter-rotational movements • Oscillating/rotating (Braun Oral B) more effective in removing plaque and reducing gingivitis than a manual toothbrush (2003)

31. Ultrasonic toothbrushes (Sonicare) • high frequency vibration (30,000 – 40,000 brush strokes/min) • Two mechanisms of actions • Conventional - scrubbing effect • Vibratory motion – impact energy to oral fluid that surround the teeth – fluid pressure and shear forces

32. Which toothbrush????? Manual vs. Electric Which electric??? ??????

33. Manual vs. Electric • Electric toothbrushes remove more plaque than manual toothbrushes • Electric toothbrush is recommended for individuals who are unable to maintain effective plaque control • Physical or learning disability • Fixed orthodontic appliances • Institutionalized patients depend upon care providers • A manual toothbrush is appropriate for most people

34. Which electric toothbrush? Oscillating/rotating(Braun Oral B) performs better than Ultrasonic (Sonicare) (Strate et al., 2005)

35. Brushing in Children • Start brushing as soon as the first tooth erupts • Preschool children need help with brushing

36. Frequency and duration of brushing • Effective plaque removal every second day has been shown to prevent gingivitis (Lang et al., 1973) • Twice daily brushing is consistent with maintaining good gingival health • 2 - 3 minute duration is recommended

37. Replacing toothbrush • Splaying of the toothbrush is the most obvious sign of toothbrush wear • Renewal is usually recommended after 3 months use

38. Interproximal Cleaning Periodontal conditions are worst in interdental areas

39. Plaque Removal

40. Interproximal cleaners • Dental floss • Interspace brush • Interdental brush • Wood points (toothpicks) • Irrigation devices

41. Dental Floss • Waxed/Unwaxed • Tape • Superfloss • Flosette

42. Dental Floss • Waxed/Unwaxed • Tape • Superfloss • Flosette

43. Flossing technique??

44. Dental Floss • Waxed/ Unwaxed • Tape • Superfloss • Flosette

45. Dental Floss • Waxed/Unwaxed • Tape • Superfloss • Flosette

46. Toothpicks • Effective only when sufficient interdental space is available • Triangular toothpicks are superior to round or rectangular • Incorrect use may cause gingival lesions

47. Interspace Brush • Used for tipped, rotated or displaced teeth, teeth with gingival recession • Limited value except for surfaces adjacent to an extraction space

48. Interdental brush • Superior to floss for cleaning open spaces • May be used for cleaning around fixed orthodontic appliances

49. Irrigation Devices • A steady or pulsating stream of water through a nozzle under pressure • Eliminate food residue accumulated interdentally

50. Irrigation Device (cont.) • NOT A SUBSTITUTE FOR BRUSHING • Time-consuming and messy • Used to deliver chemical agents to the oral cavity