healing

Question 1

Apical tissue of properly treated teeth with no signs of periapical changes is only rarely significantly inflamed. When the tissue is inflamed, microbial causes can always be demonstrated.

Answer 1

Riccuci et al 2009

Question 2

The following criteria (Strindberg 1956, Bender et al. 1966) were used to define successful endodontic treatment:

Answer 2

• Radiographic evidence of an intact lamina dura and normal periodontal ligament space around the root surface
• Absence of pain or swelling of endodontic origin

• Disappearance of a draining sinus if it had been present prior to the endodontic treatment
• No loss of function
• No evidence of tissue destruction

Question 3

the incidence of postoperative are-up as relatively low at 8.4%

Answer 3

Tsesis et al

meta-analysis

Question 4

no reduction in the incidence of are- up by prophylactic amoxicillin in asymptomatic, necrotic teeth.
Similarly, a prospective study by Walton and Chiappinelli found no effects with preoperative penicillin.

Answer 4

Pickenpaugh et al

RCT

Question 5

No statistically significant effect of postoperative are-ups on the overall prognosis of nonsurgical root canal therapy.

Answer 5

Sjogren et al

Friedman et al

Question 6

In a study that also found a 5% frequency of persistent pain, Vena et al found that two-thirds of those patients reporting pain did not have an identiable cause.

Answer 6

Vena et al