Periodontal disease arggg..... Been dealing with it for 35 years; had the flap 
surgery... waste of time and money not to mention the trauma and discomfort.
 It depends on how deep the pocket is for how long you'll keep the tooth... 
only so much gum can be removed.
 I delayed tooth loss for years by injecting hydrogen-peroxide or CS into the 
pockets using injection devices such as those sold by Oratec, but, have lost 
nine teeth, so far, as I got tired of dealing with it.
 Only down side for me is, it takes longer to chew... a small wrinkle among the 
wrinkles of living. GOOD LUCK     

https://www.oratec.net/default.asp

larry tankersley, Gainesville FL. USA