Unit 307 Provide Support for the Control of Periodontal Disease and Caries, and The Restoration of Cavities Assessment Brief 2026

City & Guilds Level 3 Extended Diploma in Dental Nursing

Unit 307 Assignment Brief

Learning Outcome

The learner will:

1. Understand the range of procedures, materials, instruments and equipment available for periodontal treatments.

Assessment Criteria

The learner can:

1.1 Explain the importance of removing supra-gingival and sub-gingival calculus by a clinician.

1.2 Describe the equipment, instruments and materials used for removing:

a) supra-gingival calculus

b) sub-gingival calculus and infected cementum.

1.3 Explain using examples, the term ‘plaque trap’ / ‘stagnation area’.

Range

(AC1.2) Equipment, instruments and materials

a) Hand scalers

i. Push scaler

ii. Periodontal hoe

iii. Curette

iv. Jacquette/Sickle

b) Prophylaxis paste

c) Prophylaxis applicator

d) Ultrasonic scaler

Learning Outcome

The learner will:

2. Understand the range of procedures, materials, instruments and equipment available for restorative treatments.

Assessment Criteria

The learner can:

2.1 Describe Black’s classification of Cavities.

2.2 Describe the equipment and instruments used in the preparation of cavities.

2.3 Describe the different types of matrix system and how they are used.

2.4 Explain the advantages, disadvantages and restrictions associated with restorative materials and lining materials.

2.5 Describe the reasons for the use of:

a) etchant

b) bonding agent

c) curing light

d) dental amalgamator

2.6 Describe the purpose and procedure for placing a fissure sealant.

2.7 Explain the importance of effective moisture control throughout restorative treatments.

Range

(AC2.2) Equipment and instruments

a) Curing light

b) Handpiece

i. High speed

ii. Slow speed

c) Types of Bur

i. Friction grip/latch grip

ii. Diamond/steel

iii. Cylinder/tapered/rose-head

d) Hand instruments

i. mirror

ii. probes

iii. tweezers

iv. excavator

v. flat plastic

vi. wards carver

vii. packer/plugger/condenser

viii. burnishers

ix. lining applicators

e) Restorative material applicators (eg amalgam carrier, composite gun, glass ionomer dispenser)

f) Items required for finishing (eg stones, strips, discs, articulating paper)

(AC2.3) Matrix system

a) Tofflemire matrix holder and band

b) Siqveland matrix holder and band

c) Wedges

d) Transparent strips

e) Single-use assembled matrix systems

(AC2.4) Restorative materials

a) Amalgam

b) Composite

c) Glass ionomer

d) Temporary cement

(AC2.4) Lining materials

e) Zinc-based liners

f) Calcium hydroxide

g) Glass ionomer

Learning Outcome

The learner will:

3. Be able to support the patient and clinician before, during and after periodontal treatment.

Assessment Criteria

The learner can:

3.1 Provide the clinician with the patient’s records for the planned treatment.

3.2 Select the equipment, instruments and materials for the planned treatment.

3.3 Aspirate during the treatment, maintaining a clear field of operation.

Range

(AC3.1) Patient’s records

a) clinical notes and dental charts

b) radiographic images

c) medical history

d) valid consent

(AC3.2) Equipment, instruments and materials

a) handpiece

b) hand instruments

c) ultrasonic scaler

d) items required for finishing (eg polishing brushes/cups, prophylaxis paste)

(AC3.2) Treatment

e) scaling

f) polishing

Learning Outcome

The learner will:

4. Be able to support the patient and clinician before, during and after restorative treatment.

Assessment Criteria

The learner can:

4.1 Provide the clinician with the patient’s records for the planned treatment.

4.2 Select the equipment, instruments and materials for the planned treatment.

4.3 Aspirate during the treatment, maintaining a clear field of operation.

4.4 Provide the clinician with the correct quantity and consistency of restorative material.

4.5 Support the patient by monitoring them through the procedure, putting their interests first and offering reassurance.

Range

(AC4.1) Patient’s records

a) clinical notes and dental charts

b) radiographic images

c) medical history

d) valid consent

(AC4.2) Equipment, instruments and materials

a) curing light

b) handpiece

c) hand instruments

d) matrix system

e) restorative material

f) items required for finishing (eg burs, strips, discs, articulating paper)

(AC4.2) Treatment

g) amalgam restorations

h) composite restorations

i) glass ionomer restorations

Unit 307 Provide support for the control of periodontal disease and caries, and the restoration of cavities Supporting Information

Evidence Requirements

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

Learning Outcome 3 – Minimum of one observation by the assessor.

Learning Outcome 4 – Minimum of one observation* of one of the treatments from the range by the assessor. The restorative treatments that are not observed by the assessor should be evidenced in the learner’s portfolio. This evidence may include expert witness testimony / professional discussion / question and answer / assignments / reflective account.

*The primary method of assessment must be observation. Assessment criteria not sufficiently covered during the observation can be assessed by an appropriate secondary method.

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