Intervention/treatment One group will be treated with a tooth colored filling that will be placed near the gum line (Glass Ionomer).

Placebo Comparator: GIC

Participants will have a restoration placed with GIC in the lesion near the gum line. Device: GIC Application of a tooth colored filling in the cavitated dental lesion. Other Name: Resin modified glass ionomer

Intervention/treatment The second group will be treated with Biodentine that will be placed near the gum line.Experimental: Biodentine

Participants will have a restoration placed with Biodentine in the lesion near the gum line. Device: Biodentine Application of a white colored filling in dental lesion.

tooth colored filling

Gingival health will be measured using the Loe -Silness gingival scoring Index (1963) which scores gingivitis on a numerical scale according to the following criteria:

• 0 = Absence of inflammation.

• 1 = Mild inflammation, slight change in color, slight edema, no bleeding on probing.

• 2 = Moderate inflammation, moderate glazing, redness, bleeding on probing.

• 3- Severe inflammation, marked redness and hypertrophy, ulceration, tendency to spontaneous

  • Gingival index will be evaluated at four sites (mesial, distal, buccal, and lingual) on each tooth

detect plaque level around restorations Plaque index (PI) (Silness and Löe, 1964). Plaque levels was measured using the Plaque Index Silness and Loe in 1964

Score Criteria

0 No plaque

1. A film of plaque adhering to the free gingival margin and adjacent area of the tooth, which cannot be seen with the naked eye. But only by Using disclosing solution or by using probe.
2. Moderate accumulation of deposits within the gingival pocket, on the gingival margin and/ or adjacent tooth surface, which can be seen with the naked eye.
3. Abundance of soft matter within the gingival pocket and/or on the tooth and gingival margin. Plaque index will be evaluated at four sites (mesial, distal, buccal, and lingual) on each tooth

Probing depths (PD) will be measured at six sites (mesial, distal, and middle sites of the buccal and lingual sides) on each tooth using a Williams periodontal probe. PD will be measured from gingival margin to the base of the pocket.