perio

2. Gingival Epithelium :
 Thinning‫نازک‬ ,
 decrease of keratinization‫کراتینیزشن‬ ‫کاهش‬
 (increase in epithelial permeability
decrease of resistance ) ‫اپیتل‬ ‫نفوذیه‬ ‫قابلیت‬ ‫افزایش‬

4.  Migration ‫مهاجرت‬of JE from its
position (ENAMEL)
To a more (APICAL ) position
 (Recession‫یا‬ ‫تحلیل‬)
 Decrease of attached
gingiva

5.  Increasing age ‫سن‬ ‫افزایش‬ ‫با‬
Coarser‫یا‬ ‫خشن‬ & denser‫سخت‬ ‫یا‬ ‫محکم‬
 Soluble collagen to insoluble
collagen ‫محلول‬ ‫غیر‬ ‫به‬ ‫محلول‬ ‫کوالجن‬ ‫تبدیل‬
Increase of
 Mechanical strength & temperature
‫میخانیکی‬ ‫مقاومت‬ ‫و‬ ‫حرارت‬ ‫درجه‬ ‫افزایش‬

6. Due to aging :‫سن‬ ‫افزایش‬ ‫اثر‬ ‫در‬
Decreased ‫یا‬ ‫کاهش‬
 number of fibroblasts
Organic matrix & epithelial cells
Increased‫یا‬ ‫افزایش‬
Elastic fibers

7. Due to aging :‫سن‬ ‫افزایش‬ ‫اثر‬ ‫در‬
Increase of cemental width‫یا‬ ‫عرض‬
(5-10)
 Apically & lingually

8. Morphologic changes in :
‫مورفولوژیک‬ ‫تغییرات‬
 Periodonthuim
 more irregular ‫منظم‬ ‫غیر‬
 periodontal surface of
bone & less irregular of collagen
fibers‫کوالجن‬ ‫های‬ ‫فایبر‬ ‫شدن‬ ‫منظم‬ ‫نا‬

9. Plaque accumulation :‫پلک‬ ‫تجمع‬
Hard tissue surfaces‫سخت‬ ‫انساج‬
Surface characteristic of exposed
ROOT surface‫جذری‬ ‫اکسپوز‬ ‫سطح‬

10. Due to aging :
increase in plaque accumulation
in root surface
result of recession

12.  After feeding period ‫شیرخوار‬ ‫دوره‬ ‫از‬ ‫بعد‬
 Tooth eruption ‫دندان‬ ‫خروج‬ (micro flora of
mouth)
 BIOFILM (soft & hard tissue )

13. BACTERIA IN GUM

14. 1. Intra oral , supragingival , hard
surface
2. Periodontal / peri implant pocket
3. Buccal & palatal epithelium
4. Posterior area of mouth‫دهن‬ ‫خلفی‬ ‫سطوح‬
5. tonsils

15. Location
 It collects particularly around or in the gingival
sulcus (a natural space between the gum and
tooth).‫میکند‬ ‫تجمع‬ ‫بیره‬ ‫میزابه‬ ‫ساحه‬ ‫در‬
 between teeth
 held next to teeth by dentures
or orthodontic braces.‫ارتودنتیک‬ ‫و‬ ‫دنچر‬ ‫ساحه‬ ‫در‬

16.  It will form more rapidly during sleep ‫جریان‬ ‫در‬
‫استراحت‬,
 as the saliva flow is much reduced so cannot
wash off the plaque‫لعاب‬ ‫شدن‬ ‫کم‬ ‫علت‬ ‫به‬ .
 In addition when patients are sleeping there is
no mechanical action of eating to remove the
plaque.‫میشود‬ ‫کمتر‬ ‫میخانیکی‬ ‫های‬ ‫فعالیت‬ ‫شب‬ ‫جریان‬ ‫در‬ ‫چون‬

17. In orthodontic braces

19.  Actinomycetes commetans (A . A )
 P . gingivalis
 S . mutans

20. Dental plaque
definition

21.  organized
 Resilient
 Yellow grayish
 In hard surface of mouth

22.  Salivary glycoprotien & exteracell
poly saccharide
cant remove by spray
MATRIA L ALBA
Soft accumulation of bactrial &
cellular tissue ….

23. Other micro organisms :
Micoplasma , fungus
protozoa , virus
1 g plaque = 10 11

24. 1. Supra gingival plaque
2. Sub gingival plaque

25. Supra gingival plaque
Marginal gingiva
Marginal plaque
g + g _

26. Sub gingival plaque
 Under marginal
 Tooth surface
 Epithel

27. Tooth
 bacteria……..
Normal periodontium

29. 3 phase :
1. Pellical
2. Primery adhasion
3. colonization

30.  Cover all surfaces of teeth
 Within Nanosecond
 Glycoprotien , protein ,
phasphoprtotien , enzymes

31.  Has 4 phases
 In an aquatic environment

32. 1. Transport to the surface
2. Initial adhasion
3. Attachment after initial
adhesion
4. Colonization of the surface &
biofilm formation

33.  When microorganism start growing
 At least 18 genera from oral cavity
shown form of
COAGGREGATION