Unit 304 Dental and Regional Anatomy, Oral Health Assessments and Treatment Planning Assessment Brief 2026

City & Guilds Level 3 Extended Diploma in Dental Nursing

Unit 304 Assignment Brief

Learning Outcome

The learner will:

1. Understand dental and regional anatomy.

Assessment Criteria

The learner can:

1.1 Describe the following features of permanent teeth:

a) Tooth morphology

i. Incisor

ii. Canine

iii. Premolar

iv. Molar

b) Usual number of roots

c) Tooth structure and surrounding tissues

i. Enamel

ii. Amelodentinal junction

iii. Primary dentine

iv. Secondary dentine

v. Odontoblasts

vi. Pulp

vii. Pulp chamber

viii. Pulp / root canal

ix. Apical foramen

x. Cementum

xi. Periodontal ligament

xii. Gingival crevice / gingival sulcus

xiii. Furcation

d) Surfaces of anterior and posterior teeth.

1.2 Compare the morphology of permanent and deciduous teeth.

1.3 Describe head and neck anatomy.

1.4 Describe the anatomy of the temporomandibular joint.

1.5 Explain temporomandibular joint movement and dysfunction.

1.6 Identify the position and function of the Maxillary and Mandibular divisions of the Trigeminal nerve.

1.7 Identify the position and function of salivary glands:

a) Parotid

b) Submandibular

c) Sublingual

1.8 Describe the composition and function of saliva.

1.9 Describe the effects of the following on the salivary glands:

a) Ageing

b) Mumps

c) Mucocoele

d) Salivary stone

1.10 Identify the position and function of the following muscles:

a) Masseter

b) Temporalis

c) Buccinator

d) Orbicularis oris

Range

(AC1.3) Head and neck anatomy

a) Skull

i. Temporal bone

ii. Zygomatic arch

b) Maxilla

i. Palate

a) Hard palate

b) Soft palate

c) Rugae

d) Tuberosity

e) Cleft palate

ii. Maxillary air sinus

iii. Oropharynx

c) Mandible

i. Coronoid process

ii. Ramus

iii. Body

iv. Tongue

v. Lamina dura / compact bone

vi. Spongy / cancellous bone

vii. Alveolar process

viii. Oral mucosa

ix. Philtrum

x. Fraenum

(AC1.5) Dysfunction

a) Trismus

b) Clicking

c) Crepitus

(AC1.6) Maxillary:

a) anterior

b) middle

c) posterior

Mandibular:

d) Inferior Dental Nerve

e) Mental Nerve

f) Lingual Nerve

Learning Outcome

The learner will:

2. Understand the recording and processing of oral health assessments.

Assessment Criteria

The learner can:

2.1 Describe the reasons for carrying out extra-oral and intra-oral methods of assessment and diagnosis.

2.2 Explain the reasons for recording contemporaneous clinical information.

2.3 Explain how to process and store dental records, charts, and images in a manner that maintains their confidentiality.

2.4 Summarise the legal requirement for patients to access their dental records.

2.5 Explain types of charting used to record oral health assessments.

2.6 Describe why triaging is necessary.

2.7 Identify the questions a patient should be asked when making an appointment for an oral health assessment.

2.8 Describe the signs, symptoms and management of conditions of the oral mucosa that could be identified during a clinical assessment:

a) acute abscess

b) denture stomatitis

c) angular cheilitis

d) aphthous ulcer / traumatic ulcer

e) glossitis / fissured / geographic tongue

f) frictional keratosis

g) pregnancy epulis

2.9 Explain how medical conditions may affect oral tissues and influence treatment planning.

2.10 Explain why various antibiotics are prescribed in dentistry.

2.11 Describe the main side effects of antibiotics.

2.12 Explain the security measures that should be in place when providing the patient with a prescription.

2.13 Describe National Institute for Health & Care Excellence (NICE) guidelines for recall intervals between oral health assessment reviews / examinations.

Range

(AC2.1) Methods

a) Visual

b) Palpation

c) Using probes for hard and soft tissue examinations

i. Sickle

ii. Straight

iii. Briault

iv. WHO / BPE

v. 6-point pocket chart (Williams)

d) Transillumination

e) Vitality testing

i. Cold

ii. Heat

iii. Electrical

f) TTP (tender to percussion) technique

(AC2.2) Clinical information

a) Dental charts

b) Basic periodontal examination (bpe) / periodontal chart

c) Radiographs (to include orthodontics)

d) Photographs (to include orthodontics)

e) Study models (to include orthodontics)

f) Personal details

g) Social history

h) Medical history

i) Consent (with written/signed treatment plan)

j) Referral letters

(AC2.5) Types of charting

a) Palmer Notation charting

b) FDI (Fédération Dentaire Internationale)

c) BPE (Basic Periodontal Examination)

d) Full periodontal charting

(AC2.9) Medical conditions

a) Herpes simplex – cold sores

b) Diabetes: insulin / medication / diet controlled

c) Epilepsy / anticonvulsant medication

d) Pregnancy

e) Bleeding disorders / anticoagulants

f) Osteoporosis (Bisphosphonate therapy)

g) Cancer (Head and neck radiotherapy, chemotherapy)

(AC2.10) Antibiotics

a) Penicillin

b) Erythromycin

c) Clarithromycin

d) Metronidazole

Learning Outcome

The learner will:

3. Understand the information required in an orthodontic assessment.

Assessment Criteria

The learner can:

3.1 Define the terms that may be used in an orthodontic assessment.

3.2 Describe the Index of Orthodontic Treatment Needs (IOTN) rating system.

3.3 Describe the purpose of using orthodontic appliances.

3.4 Describe the function of an orthodontic retainer.

Range

(AC3.1) Terms

a) Overjet

b) Overbite

c) Diastema

d) Spacing

e) Crowding

f) Supernumerary tooth

g) ‘Open’ bite

h) Skeletal classification / jaw relationship

i. Class i

ii. Class ii

iii. Class iii

i) Lip competency

j) Angle’s classification of incisors

i. Class i

ii. Class ii division 1

iii. Class ii division 2

iv. Class iii

(AC3.2) Index of Orthodontic Treatment Needs (IOTN)

a) Dental health component

b) Aesthetic component

(AC3.3) Orthodontic appliances: (eg types of tooth movement)

a) removable appliance

b) fixed appliance

c) functional appliance

(AC3.4) Orthodontic retainer

a) removable

b) fixed

Learning Outcome

The learner will:

4. Be able to assist during an oral examination and complete dental charts.

Assessment Criteria

The learner can:

4.1 Provide clinical notes to assist the clinician when conducting an oral examination.

4.2 Prepare equipment and instruments for the clinician to:

a) examine intra-oral soft tissues

b) complete a dental charting of teeth

c) complete a gingival periodontal scan/pocket depths

4.3 Record a permanent dental chart as spoken by the clinician when conducting an oral examination.

4.4 Update patient records as directed by the clinician (eg social, medical and dental history) and ensure they are stored securely in line with legislation.

Learning Outcome

The learner will:

5. Be able to complete hand-written Palmer Notation dental charts.

Assessment Criteria

The learner can:

5.1 Produce a hand-written Palmer Notation chart of:

a) an adult patient showing common restorative and prosthetic treatments along with decayed, missing and filled anterior and posterior teeth

b) a child in the mixed dentition stage showing decayed, missing and filled deciduous teeth, and permanent teeth with fissure sealants.

Unit 304 Dental and regional anatomy, oral health assessments and treatment planning Supporting Information

Evidence Requirements

Learning Outcomes 1, 2 and 3 – Centres may use professional discussion, assessor devised questions, expert witness testimonies, outcomes of research-based activities, assignments and reflective accounts.

Learning Outcome 4 – minimum of one observation by assessor or expert witness (simulation is not allowed).

Learning Outcome 5 – To be assessed by simulation which must be carried out by the assessor to meet the assessment criteria. The learner must complete hand-written Palmer Notation charts to ensure sufficient evidence of competence in this area.

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