Original sentence: Reevaluation: Multiple clinical studies have shown that non-surgical scaling and root planing is usually successful in periodontal pocket depths no greater than 4-7mm (See articles by Stambaugh RV, Int J Periodontics Rest Dent, 1981 or Waerhaug J, J Periodontol, 1978)
Edited sentence: Reevaluation: Multiple clinical studies have shown that non-surgical scaling and root planing is usually successful in periodontal pocket depths no greater than 4-5mm (See articles by Stambaugh RV, Int J Periodontics Rest Dent, 1981 or Waerhaug J, J Periodontol, 1978)