Postoperative application of hyaluronic acid gels 3 times per day for 7 days after tooth extraction

No adjunctive therapy undergoing natural healing

Post-operative application of Hyaluronic acid gel 3 times per day (8 hours distance between each application) for 7 days after oral hygiene and without swallowing, eating or drinking for one hour after the application, as follows: "wash your hands thoroughly before each application, apply a layer of gel on the injured mucosa, massage with a finger in order to facilitate spreading of the product over the treated area".

3 possible scores for each of the 4 parameters considered: tissue color (1= 100% pink gum; 2=<50% hyperemic gum ; 3=>50% hyperemic gingiva), bleeding (1=absent; 2=provoked by palpation; 3=spontaneous), granulation tissue (1=pink and firm; 2=red and soft; 3=brittle), suppuration ( 1=no accumulation of plaque on the margins; 2=evident plaque on the margins; 3=suppuration/alveolitis). In this index, a score of 4 corresponds to excellent healing, conversely a score of 12 corresponds to very poor healing.

Ratio between the volume of the healing socket at a given Time and the volume of the socket at T0. It was calculated by measuring (millimeters) the maximum oral-vestibule (OV) diameter, the maximum mesio-distal (MD) diameter, and the maximum socket depth (SD). MD diameter was measured in the point of the maximum MD width of the socket both for single-rooted and multi-rooted teeth. OV diameter was measured in the point of the maximum vestibule-oral width of the socket or of each root (considering only the maximum value for the pluri-rooted teeth). SD was measured as the distance between the gingival margin and the socket bone in the point of its maximum depth (without forcing the probe).

Visual Analogue Scale