OHAT Natural Teeth

The Oral Health Assessment Tool (OHAT) Scoring - Natural Teeth

OHAT Scoring Instructions

0 = Healthy No decayed or broken teeth/roots	1 = Changes 1-3 decayed or broken teeth/roots or very worn down teeth	2 = Unhealthy 4+ decayed or broken teeth/roots, or very worn down teeth, or less than 4 teeth
Normal teeth	2 decayed teeth	5 decayed teeth
Normal teeth	1 tooth root	11 decayed teeth
Normal teeth	1 molar tooth root	6 tooth roots

0 = Healthy

No decayed or broken
teeth/roots

1 = Changes

1-3 decayed or broken
teeth/roots or very
worn down teeth

2 = Unhealthy

4+ decayed or
broken teeth/roots,
or very worn down teeth,
or less than 4 teeth

Normal teeth

2 decayed teeth

5 decayed teeth

Normal teeth

1 tooth root

11 decayed teeth

Normal teeth

1 molar tooth root

6 tooth roots

OHAT Practice Quiz

Practice using the Oral Health Assessment Tool by filling out the first part of the form for Mr. Johnson's natural teeth, which are shown in the photographs below.

Category

0 = Healthy

1 = Changes

2 = Unhealthy

Category Scores

Natural Teeth
Yes/No

no decayed or broken teeth/roots

1-3 decayed or broken teeth/roots or very worn- down teeth

4+ decayed or broken teeth/roots, or very worn-down teeth, or less than 4 teeth

For both natural teeth and dentures, circle if present (Yes) or not present (No). If not present, then you do not need to complete any scores for that category, so write “0” in the corresponding category score box.

OHAT Practice Answer

Category	Observation	Our Score
Natural Teeth Present: Yes	Two areas of decay are evident around the roots of the top teeth	1

Oral Hygiene Care Plan (Chalmers, 2004 for use by the Iowa Geriatric Education Center; reviewed by Marchini, 2016; Review 2023)