Table 1 Evaluation criteria of the anterior, middle, and posterior inclined angles of quadrilateral plate
Grade | Definition |
|---|---|
Excellent | All the inclined angles of anterior, middle, and posterior were within normal range |
Good | The anterior and middle inclined angles were within normal range, but the posterior inclined angle was not; The middle and posterior inclined angles were within normal range, but the anterior inclined angle was not; The middle inclined angle was within normal range, but the anterior and posterior inclined angle were not |
Poor | All the inclined angles of anterior, middle, and posterior were not within normal range, or only the middle inclined angle was not within normal range |