exam qs

Which soft tissues are examined during I/O exam? (9 marks)

Answer explanation

Gingiva - buccal, lingual, palatal

Buccal mucosa and sulcus

Lingual mucosa and sulcus

Palate

FOM

Tongue

Retromolar area

Sulcus area

Oropharynx and uvula

What do we look for when examining/charting teeth? (10 marks)

Answer explanation

Present or missing

Tooth type

Missing - closed space or open

Carious lesions

Restorations - type

Margins of restoration - failing, carious

Erupted

Fractured

Partially erupted

Abutments

What else do we look for intra orally? (7 marks)

Answer explanation

Plaque/calculus

OH

Tooth wear

Discolouration

Dental trauma

Dentures

Occlusal pattern and incisal relationship

Components of a radiograph assessment (16 marks)

Answer explanation

Healthy bone position

Degree of bone loss - %, mm

Pattern of bone loss - horizontal, vertical

Progression of bone loss - serial radiographs

Root morphology

Furcation defects

Caries

Overhanging restorations

Subgingival calculus

Widening of PDL

Apical pathology

Endo perio lesions

Retained roots

Trauma

Ortho

Other pathology - cysts, bone, TMJ, sinuses

How would you explain gingivitis to a patient? (4 marks)

Answer explanation

Mildest form of perio

Causes to be red, swollen and bleed

Usually little/no discomfort

Reversible with treatment and good OHI

How would you explain periodontitis to a patient? (7 marks)

Answer explanation

Untreated gingivitis can advance to periodontitis

Plaque can spread and grow below gum line

Toxins produced by bacteria in plaque irritate gums and stimulate chronic inflammatory response

Body turns on itself, tissues and bone that support teeth are broken down and destroyed

Gums separate from teeth, form pockets that can become infected

As disease progresses, pockets deepen and more gum tissue and bone are destroyed

Eventually tooth become loose and may fall out or need to be removed

A patient has been receiving NSM for 2 years and is questioning why he still needs treatment. How would you respond? (4 marks)

Answer explanation

Periodontitis is irreversible

Management revolves around control of plaque - supra and sub PMPR

Once active phase of treatment complete - regular maintenance appts needed to keep condition stable

Studies show benefit of regular supportive perio therapy

What is a periodontal abscess? (2 marks)

Answer explanation

Forms in the gums (gum pocket/gingival wall of pocket)

Tooth may be vital

What is periapical abscess? (2 marks)

Answer explanation

Forms/originates in tooth pulp/root tip or apex

Unlikely to be vital

In what possible situation would an abscess be asymptomatic?

Answer explanation

If it is freely draining