Counting Chompers
This numbering system uses quadrants 1–4 and tooth numbers 1–8.
What is the FDI system?
The number of Ramfjord teeth used in multiple indices.
What is six?
This index records the presence of plaque on all tooth surfaces to monitor progress.
What is the Plaque Control Record (O’Leary)
This index scores gingival severity from 0–3, with 3 indicating ulceration and spontaneous bleeding.
What is the Gingival Index (GI)?
The PHP score is calculated by dividing the total debris score by this.
What is the number of teeth scored?
Tooth #13 in the ADA system corresponds to this FDI notation.
What is 23? (UR canine → FDI "13")
This anterior tooth is included in the Ramfjord set.
What is tooth #9 or #25?
The plaque index scoring system is attributed to these researchers.
Who are Silness & Löe?
Redness, edema, and bleeding on probing indicate this score on the GI scale.
What is a score of 2 (moderate inflammation)?
The purpose of this index is to allow patients to visually see areas of biofilm and motivate improvement.
What is the Plaque-Free Score?
The second digit in the FDI system indicates this feature of the tooth.
What is the position from the midline (1 = central incisor, 8 = 3rd molar)?
This index assessing general oral cleanliness also uses the Ramfjord teeth and subdivides each into five areas.
What is the PHP index?
The formula: (surfaces with plaque ÷ total surfaces) × 100 belongs to this index.
What is the Plaque Control Record?
This gingival embrasure class shows slight to moderate recession, creating a small open space under the contact area
What is Class II Embrasure
The debris index and calculus index combine to form this overall score.
What is the simplified Oral Hygiene Index (OHI-S)?