Subgingival administration of Aloe vera gel was preceded by flushing the area with saline to wash away any debris. Aloe vera (1cc) gel was applied subgingivally using atraumatic needle. Patients were instructed not to rinse or drink any liquid for at least 30 minutes. The application was performed at baseline and after 1 and 2 weeks.

This was measured using a periodontal probe from the gingival crest to depth of sulcus.

This is measured using a periodontal point. The distance between the cemento-enamel junction and gingival attachment level

This is measured using Papillary Bleeding Index (PBI). A periodontal probe is inserted into the gingival sulcus at the base of the papilla on the mesial aspect, and then moved coronally to the papilla tip. This is repeated on the distal aspect of the papilla. The intensity of any bleeding is recorded as:

Score 0 - no bleeding; Score 1 - A single discreet bleeding point; Score 2 - Several isolated bleeding points or a single line of blood appears; Score 3 - The interdental triangle fills with blood shortly after probing; Score 4 - Profuse bleeding occurs after probing; blood flows immediately into the marginal sulcus.

This will be assessed on 4 surfaces of 6 index teeth. Each of the four surfaces of the teeth (buccal, lingual, mesial and distal) is given a score from 0-3. The scores from the four areas of the tooth are added and divided by four in order to give the plaque index for the tooth with the following scores and criteria. 0:No plaque, 1: A film of plaque adhering to the free gingival margin and adjacent area of the tooth. The plaque may be seen in situ only after application of disclosing solution or by using the probe on the tooth surface. 2: Moderate accumulation of soft deposit s within the gingival pocket, or the tooth and gingival margin 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.