NZQA Expiring unit standard
27454 version 3
Page 1 of 4
Title
Describe tooth notation and anatomy, dental caries, and periodontal
disease
Level
3
Credits
5
Purpose
People credited with this unit standard are able to describe
tooth notation and anatomy, dental caries, and periodontal
disease.
Classification
Health, Disability, and Aged Support > Allied Health Assistance
Available grade
Achieved
Explanatory notes
1
Legislation relevant to this unit standard includes:
Health and Disability Commissioner (Code of Health and Disability Services
Consumers’ Rights) Regulations 1996;
Health Practitioners Competence Assurance Act 2003;
Health (Retention of Health Information) Regulations 1996;
Privacy Act 1993.
2
New Zealand Standards relevant to this unit standard include:
AS/NZS 4478:1997 Guide to the reprocessing of reusable containers for the
collection of sharp items used in human and animal clinical/medical applications;
AS/NZS 4815:2006 Office-based health care facilities – Reprocessing of reusable
medical and surgical instruments and equipment, and maintenance of the associated
environment;
NZS 4304:2002 Management of Healthcare Waste;
NZS 8134.1:2008 Health and disability services Standards – Health and disability
services (core) Standards;
NZS 8134.3:2008 Health and disability services Standards – Health and disability
services (infection prevention and control) Standards;
NZS 8153:2002 Health records.
All New Zealand Standards are available at http://www.standards.co.nz/.
3
Primary references
Beaglehole, R., Benzian, H., Crail, J., & Mackay, J. The oral health atlas: Mapping a
neglected global health issue. Cointrin, Switzerland: FDI World Dental Federation.
Bird, D., and Robinson, D. (2011). Modern dental assisting. (10th ed.). New York:
Churchill Livingstone/Elsevier.
FDI World Dental Federation. (n.d.) Two-digit notation. Retrieved 4 April, 2011, from
http://www.fdiworldental.org/two-digit-notation.
Finkbeiner, B., & Johnson, C. (1997). Mosby’s comprehensive review of dental
assisting. Mosby: St Louis, USA.
Community Support Services ITO Limited
SSB Code 101814
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
27454 version 3
Page 2 of 4
New Zealand Dental Association. (n.d.). Gum disease. Retrieved 4 April, 2011, from
http://www.healthysmiles.org.nz/default,284,gum-disease.sm.
New Zealand Dental Association. (2010). Health smile, healthy child: Oral health
guide for well child providers (3rd ed.). Auckland: Author, available at
http://www.healthysmiles.org.nz/assets/pdf/HealthySmilesBooklet-3rdEdition_sml.pdf.
The New Zealand Society of Periodontology. (n.d.). What is periodontal (gum)
disease. Retrieved 4 April, 2011, from http://www.perionz.org/what-is-periodontaldisease/.
4
This unit standard cannot be assessed against in a simulated environment. For
assessment, candidates must demonstrate competence in the workplace through
paid or unpaid employment, or in placements in a service provider workplace
negotiated by an education provider.
5
Definitions
Candidate refers to the person seeking credit for this unit standard.
Dental caries is a disease in which bacteria destroy hard tooth structure.
Periodontal disease is a bacterial infection of the gums and other tissues that attach
to and anchor teeth to the jaws. It is caused by an accumulation of dental plaque on
the teeth.
Primary dentition refers to deciduous teeth, often called 'baby teeth'.
Secondary dentition refers to permanent teeth, often called 'adult teeth'.
Outcomes and evidence requirements
Outcome 1
Describe tooth notation and anatomy.
Evidence requirements
1.1
Tooth notation is described in terms of the FDI World Dental Federation Twodigit notation (ISO-3950 notation).
Range
1.2
Tooth structure is described in terms of its structural components in accordance
with the primary references.
Range
1.3
primary dentition, secondary dentition, tooth types.
structural components – enamel, dentine, pulp, cementum,
periodontal ligament, bone, crown, root.
Tooth surfaces are described in terms of their location in accordance with the
primary references.
Range
evidence is required for each of the five surfaces – occlusal
(incisal), mesial, distal, lingual (palatal), buccal (facial).
Community Support Services ITO Limited
SSB Code 101814
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
27454 version 3
Page 3 of 4
Outcome 2
Describe dental caries.
Evidence requirements
2.1
Dental caries is described in terms of its causes and symptoms in accordance
with the primary references.
2.2
Dental caries is described in terms of its progression and management in
accordance with the primary references.
Outcome 3
Describe periodontal disease.
Evidence requirements
3.1
Periodontal disease is described in terms of its causes and symptoms in
accordance with the primary references.
3.2
Periodontal disease is described in terms of its progression and management in
accordance with the primary references.
This unit standard is expiring. Assessment against the standard must take place by
the last date for assessment set out below.
Replacement information
This unit standard was replaced by unit standard 29453
Status information and last date for assessment for superseded versions
Process
Version Date
Last Date for Assessment
Registration
1
17 June 2011
31 December 2012
Revision
2
19 January 2012
31 December 2018
Review
3
17 March 2016
31 December 2018
Consent and Moderation Requirements (CMR) reference
0024
This CMR can be accessed at http://www.nzqa.govt.nz/framework/search/index.do.
Please note
Providers must be granted consent to assess against standards (accredited) by NZQA,
before they can report credits from assessment against unit standards or deliver courses
of study leading to that assessment.
Industry Training Organisations must be granted consent to assess against standards by
NZQA before they can register credits from assessment against unit standards.
Community Support Services ITO Limited
SSB Code 101814
 New Zealand Qualifications Authority 2016
NZQA Expiring unit standard
27454 version 3
Page 4 of 4
Providers and Industry Training Organisations, which have been granted consent and
which are assessing against unit standards must engage with the moderation system that
applies to those standards.
Requirements for consent to assess and an outline of the moderation system that applies
to this standard are outlined in the Consent and Moderation Requirements (CMR). The
CMR also includes useful information about special requirements for organisations wishing
to develop education and training programmes, such as minimum qualifications for tutors
and assessors, and special resource requirements.
Comments on this unit standard
Please contact the Community Support Services Industry Training Organisation Limited
info@careerforce.org.nz if you wish to suggest changes to the content of this unit
standard.
Community Support Services ITO Limited
SSB Code 101814
 New Zealand Qualifications Authority 2016