Table 1 Clinical characteristic features of G1 and G2

Pocket depth (PD)

PD was assessed from the gingival margin to the base of the pocket with PD in both groups greater than 5 and less than 8

plaque index (PI)

The measurement of the state of oral hygiene evaluated by the presence or absence of visible plaque present at the tooth margin with gingiva the following score:

• Score 0: No plaque

• Score 1: Plaque only recognized by disclosing tab or using a running probe

• Score 2: moderate deposition of the plaque can be seen by the naked eye

• Score 3: excess of soft matter within the gingival pocket and or on the gingival margin or tooth

• With score 0 excellent, 0.1–0.9 good,1-1.9fiar, and 2–3 poor

All patients revealed positive attitudes towards oral hygiene with being in the category of good oral hygiene at the re-evaluation phase

Bleeding on probing (BOP)

(BOP) was assed as;

Score (0): Healthy gingiva; no bleeding upon insertion of periodontal probe interproximal

Score (1): Edematous, reddened gingiva; no bleeding upon insertion of periodontal probe interproximal

Score (2): Bleeding without flow upon periodontal probe interproximal

Score (3): Bleeding with flow along gingival margin upon insertion of periodontal probe interproximal

Score (4): Copious bleeding upon insertion of periodontal probe interproximal

Score (5): Severe inflammation, marked redness with liability to spontaneous bleeding.

All patients of both groups showed positive oral hygiene with a decreased mean value of BOP from the base to the re-evaluation phase

Tooth mobility (TM)

with giving score M0: Physiological mobility, M1: Slightly increased mobility, M2: Definitive considerable increase in mobility but no impairment of function, M3: Extreme mobility, a loose tooth that would be incompatible with function.

All patients of groups selected with grade mobility from M0, M1, and M2 only.

Cases of M3 mobility were completely excluded.