• Save
Indices for dental caries
Upcoming SlideShare
Loading in...5
×
 

Indices for dental caries

on

  • 20,073 views


Indices for dental caries - Preventive & Community Dentistry

Statistics

Views

Total Views
20,073
Slideshare-icon Views on SlideShare
20,073
Embed Views
0

Actions

Likes
7
Downloads
0
Comments
5

0 Embeds 0

No embeds

Accessibility

Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel

15 of 5 Post a comment

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Indices for dental caries Indices for dental caries Presentation Transcript

    • Preventive & Community DentistryIndices forDental Caries By: Abbas Naseem 2nd year BDS abbas_naseem@yahoo.com 1
    • Index • “A numerical value, describing the relative status of a population, on a graduated scale with definite upper & lower limits, designed to Permit & Facilitate comparison with other populations classified by the same criteria & methods.” – Russel A.L IDEAL REQUISITES OF AN INDEX Clarity, Simplicity and Objectivity. Validity Reliability Quantifiability Sensitivity Acceptability 2By: Abbas Naseem - 2nd Year BDS
    • INDICES USED FOR ASSESSMENT OF DENTAL CARIES 3By: Abbas Naseem - 2nd Year BDS
    • INDICES USED FOR ASSESSMENT OF DENTAL CARIES Commonly Used ! Other Indices Permanent Teeth STONE’S INDEX 1. DMFT CZECHOSLOVAKIAN CARIES 2. DMFS INDEX (CCI) 3. DMFSS CARIES SUSCEPTIBILITY Primary Teeth INDEX 1. dft DMF SURFACE PERCENTAGE 2. dfs INDEX (DMFS PI) 3. dfss RESTORATIVE INDEX (RI) Mixed Dentition MODIFIED DMFT INDEX 1. (dft) & (DMFT) CARIES SEVERITY INDEX 2. (dfs) & (DMFS) (Csi) FUNCTIONAL MEASURE INDEX (FMI) TISSUE HEALTH INDEX DENTAL HEALTH INDEX (DHI) 4 SIGNIFICANT CARIES INDEXBy: Abbas Naseem - 2nd Year BDS
    • DMFT Index Decayed, Missing, Filled Index • DMFT Index is a quantitative expression of a person’s lifetime caries experience in the permanent teeth. i.e its Purpose is to determine total dental caries expe Advantages / Uses of DMFT Index: Caries experience (past & present) & prevalence of an individual & community can be found out. By using caries experience, oral health status can be estimated indirectly. It gives a broad overview of caries experience in a population over a period of time. D- Component gives tooth status affected by Dental caries (Caries Morbidity). M- Component gives tooth lost (Caries Mortality). F- Component gives the account of fillings done among the populations. 5By: Abbas Naseem - 2nd Year BDS
    • DMFT Index Decayed, Missing, Filled Index 6By: Abbas Naseem - 2nd Year BDS
    • DMFT Index Decayed, Missing, Filled Index • Instruments Used: Dental Mouth Mirror A No. 23 explorer, also known as a sickle probe OR shepherds hook probe DMFT Index is Irreversible Index. 7By: Abbas Naseem - 2nd Year BDS
    • DMFT Index Decayed, Missing, Filled Index Principles & Rules in Recording DMFT Based on 28 teeth RULES OF DMFT: Teeth not counted: No tooth should be recorded Third molars. more than once,either Unerupted teeth. decayed ,missing or filled Congenitally missing & teeth. Decayed, missing and filled supernumerary teeth. teeth should be recorded Teeth removed for separately. reasons other than Secondary caries below the dental caries such as filling should be counted as orthodontic treatment or decayed. impaction. Teeth missing only due to Teeth restored for caries should be counted as reasons other than missing & also those which dental caries such as are indicated for extraction Unerupted teeth,missing due8 trauma (fracture)By: Abbas Naseem - 2nd Year BDS to accident, congenitally
    • DMFT Index Decayed, Missing, Filled Index Principles & Rules in Recording DMFT A tooth which is restored separately on different surfaces should be counted only once as filled tooth. A tooth which is decayed as well as filled is considered as decayed. Deciduous teeth should not be counted. A tooth is considered to be erupted when the occlusal surface or incisal edge is totally exposed. A tooth is considered to be present even though the crown has been destroyed and only the roots are left. The DMF score for an individual can range from 0 to 28,in whole9By: Abbas Naseem - 2nd Year BDS numbers
    • DMFT Index Decayed, Missing, Filled Index W.H.O MODIFICATIONS(1986) All third molars are included. Temporary restorations are considered as ‘D’ Only carious cavities are considered as ‘D’ The initial lesions (chalky spots, stained fissures, etc) are not considered as’D 10By: Abbas Naseem - 2nd Year BDS
    • DMFT Index Decayed, Missing, Filled Index 11By: Abbas Naseem - 2nd Year BDS
    • DMFT Index Decayed, Missing, Filled Index • Calculations of DMFT Index; Individual DMFT Total each component i.e D, M, & F separately, then total D+M+F= DMFT Group Average Total DMFT for each individual. Then divide the total ‘DMF’ by the # of individuals in the group. 12By: Abbas Naseem - 2nd Year BDS
    • DMFT Index Decayed, Missing, Filled Index Disadvantages / Limitations of DMFT Index: 1-) DMFT values are not related to the number of teeth at risk. So, it does not directly give an indication of the intensity of attack of caries. 2-) DMF T can be invalid in older adults because teeth can become lost for reasons other than caries. 3-) DMFT index can be misleading in children whose teeth have been lost due to orthodontic treatment. 4-) DMFT index can overestimate caries experience in teeth in which preventive filling have been placed. 5-) DMFT index cannot be used for Root Caries. 6-) Even under extreme conditions, the scores are same. 7-) Doesn’t give account for treatment needs. 8-) Rate of caries progression cannot be assessed in terms of how fast caries is progressing OR how fast caries has progressed. 9-) Reaches Saturation level at a particular point of time when all the teeth are involved & prevents further registration of caries attack 13By: Abbas Naseem - 2nd Year BDS even when caries activity is contiuing.
    • DMFT Index Decayed, Missing, Filled Index Identify … ??? 14By: Abbas Naseem - 2nd Year BDS
    • DMFT Index Decayed, Missing, Filled IndexBy: Abbas Naseem - 2nd Year BDS 15
    • 16By: Abbas Naseem - 2nd Year BDS
    • DMFT Index Decayed, Missing, Filled Index Filled & Decayed MissingBy: Abbas Naseem - 2nd Year BDS 17
    • DMFS Index Decayed, Missing, Filled Surface Index “When the DMFT Index is employed to assess Each Individual surface of each tooth, it is termed as DMFS Index.“ The principles, rules, & criteria for DMFS Index is the same as that of DMFT index, only difference is that in DMFS Index; >> The Surfaces are examined <<. 18By: Abbas Naseem - 2nd Year BDS
    • DMFS Index Decayed, Missing, Filled Surface Index 19By: Abbas Naseem - 2nd Year BDS
    • DMFS Index Decayed, Missing, Filled Surface Index Advantages / Uses of DMFS Index: 1-) DMFS Index; is Index of choice in a clinical trial of a caries preventive agent. 2-) More Precise 3-) More Sensitive 4-) Gives true status of caries attack. Disadvantages / Limitations of DMFS Index: 1-) Takes a longer time. 2-) More likely to produce inconsistencies in diagnosis & require use of radiographs to be fully accurate. 3-) Prevalence of dental caries is expressed as %age of population showing any evidence of caries & this measure is useful while caries is low. 4-) DMFT used in large surveys to have quantitative measure of caries experience without using radiographs.By: Abbas Naseem - 2nd Year BDS 20 5-) Dental caries experience is all one can find from Cross-Sectional
    • INDICES FOR PRIMARY DENTITION deft or defs index (dft or dfs index) • Caries indices used for primary dentition are equivalent to indices used in permanent dentition.By: Abbas Naseem - 2nd Year BDS 21
    • INDICES FOR PRIMARY DENTITION – dft or dfs index 22By: Abbas Naseem - 2nd Year BDS
    • INDICES FOR MIXED DENTITION • In case of mixed dentition, Caries Indices for the permanent teeth & deciduous teeth have to be done separately. • The DMFT or DMFS & dft or dfs are never added together. 23By: Abbas Naseem - 2nd Year BDS
    • “ The whole art of teaching is only art of awakening the natural curosity of young minds for the purpose of satisfying it afterwards. ” Anatole France Abbas Naseem Dated: August 12, 2010By: Abbas Naseem - 2nd Year BDS abbas_naseem@yahoo.com24