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. Contents. Self-introductionCaries Biological basis of Operative Dentistry Cavity PreparationResearch papers. Self-introduction. prefix. dent- , denta- ?,? dent-al ?? dent-al caries ? dent-al materials ???? dent-alloy ???.
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1. Dep. of Operative Dentistry & Endodontics
School of Stomatology
Fourth Military Medical University
3. Contents Self-introduction
Caries
Biological basis of Operative Dentistry
Cavity Preparation
Research papers
4. Self-introduction
5. prefix dent- , denta- ?,?
dent-al ??
dent-al caries ?
dent-al materials ????
dent-alloy ???
6. denti- , dento - ?, ?
dentist ????
dentistry ???
dentition ??
Operative Dentistry ????(??)?
7. odonto-, odont- ?, ?
Odonto-logy ???
endo-, end- ?,??,??
end-odontics ????
peri- ??,??
peri-odonto-logy ????
ped(o) - ??????
ped-odontics ?????
8. Conservative Dentistry
Operative Dentistry & Endodontics
Periodontology & Oral Medicine
Pedodontics
Department of
Conservative Dentistry
Operative Dentistry & Endodonics
9. stomato-, stomat- ?? ??
stomatic ???
Stomato-logy ??(?)?
School of Stomatology ?????
stomatological ?????
stomat-itis ???
10. oral ??
cavity ??
microflora ????
hygiene ????
oralogy ???
11.
in vitro ?? (????)
in vivo ?? (????)
in situ ??
12. Permanent dentition
14. Caries
15. Clinical Appearance
16. Characteristics ??????????????????????????,????????????????
..?,????,??????????????,???,??????,????;??????????,??????,??????,????,???????????????????????????????,???????????????????????????????????,????????????????????????????????????????,????????????????
..?,????,??????????????,???,??????,????;??????????,??????,??????,????,???????????????????????????????,???????????????????????????????????,??????????????
17. Process of caries Demineralization of apatites
Decomposition of organic substance
Discoloration
Disintegration of tooth structure
Cavitation
18. Definition Dental caries, or tooth decay, is a pathological process of localized destruction of tooth tissue by microorganisms. It is an irreversible, slowly progressive decay of the hard tissues of individual teeth characterized by demineralization of apatites and decomposition of organic substance which leads to a disintegration of tooth structures and cavitation.
19. Susceptible sites ???????,??????????????????????????? ???????,???????????????????????????
20. ????????????????;??????????,?????????????????????,??????,?????,??????????????????? ????????????????;??????????,?????????????????????,??????,?????,???????????????????
21. Susceptible teeth molar premolar incisor canine ???????????????????????,?????????????????????????????,???????,?????????,??????? ???????????????????????,?????????????????????????????,???????,?????????,???????
22. Classification Developmental stage ????????????????,?????,?????????????
(????)???????????????
?????????????????;???????,??????????????????,???????,???,????????;????,???????,?????,?????????????,??????????,???????? ????????????????,?????,?????????????
(????)???????????????
?????????????????;???????,??????????????????,???????,???,????????;????,???????,?????,?????????????,??????????,????????
23. Symptom? Irritating/stimulating pain
Spontaneous pain
24. Developmental speed Chronic caries
Acute caries
rampant caries
Arrested caries ????????,????
???,??????,??1.5-2??????????????,??????????,????????????;??????????????,???????,?????
,??
..,?????????????,??????,?????? ????????,????
???,??????,??1.5-2??????????????,??????????,????????????;??????????????,???????,?????
,??
..,?????????????,??????,??????
26. Treated or not primary caries
secondary caries ?
..??
.?????????????;?????????????????????????????,??????????,???????;??,???????????????,????,??????? ?
..??
.?????????????;?????????????????????????????,??????????,???????;??,???????????????,????,???????
27. Etiology Multi-factorial disease
Host: teeth & saliva
Microflora
Substrate
Time
28. Four factors must be acting concurrently
Conditions within each of these factors must be favorable :
bacteria cariogenic
substrate suitable
host susceptible
time sufficient
32. Biological basis of Operative Dentistry
33. Dentinogenesis Primary dentinogenesis
Secondary dentinogenesis
Tertiary dentinogenesis
Reactionary dentinogenesis
Reparative dentinogenesis
34. Dentinogenesis Primary dentinogenesis
before completion of root formation
Secondary dentinogenesis
after completion of root formation
Tertiary dentinogenesis
at specific foci in the tooth in response to various stimuli
35. Dentine matrix secreted by surviving odontoblasts in response to an appropriate stimulus.
37. Dentine matrix secreted by a new generation of odontoblast-like cells in response to an appropriate stimulus, after the death of the original odontoblasts.
39. Operative Dentistry
40. Cavity Classification I: Beginning in pits and fissures.
II: Beginning in the proximal surfaces of the premolars and molars.
III: Beginning in the proximal surfaces of the incisors and canines.
IV: Beginning in the proximal surfaces of the incisors and canines and involving the incisal angle.
V: Beginning in the gingival third of the labial, buccal or lingual surfaces.
41. Fundamental Principles Removal of the caries lesion clearly
Conservation of the health dentine APAC
Protection of the dental pulp APAC
42. Cavity preparation Procedures
1. Gain access and obtain outline form
2. Obtain the required resistance form
3. Obtain the required retention form
4. Obtain the required convenience form
5. Remove any remaining caries dentine
6. Finish the enamel walls and margins
7. Perform cavity cleansing and medication
44. A synthetic enamel for rapid tooth repair Seamless fixing of an early caries lesion can be achieved without prior excavation.
49. SEM photograph of longitudinal section of paste-treated tooth after 10,000 times of brushing. Loss of re-grown layer by brushing is less than 10 %.
50. Self-assembling peptide scaffolds promote enamel remineralization
55. ????????,??????,??????
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