RESULTS Application of the Oral Health Impact Profile ( OHIP ) demonstrated that disease of pulpal origin affects quality of life with moderate severity , primarily through physical pain and psychological discomfort , and that RCT results in broad improvement of quality of life .
Satisfaction with RCT is extremely high , but cost is the primary reason for dissatisfaction .
Anxiety and fear affect RCT patients , profoundly influencing their behaviors , including treatment avoidance , and their pain experience .
Fear of pain is " fair " to " very much " prior to RCT .
Pain is widely feared , disliked , and remembered ; however , disease of pulpal origin generally produces moderate , but not severe pain .
RCT causes a dramatic decrease in pain prevalence and severity over the week following treatment .
Survival rates of teeth after RCT are very high ; complication rates are low .
Cost is a barrier to RCT , but initial costs , lifetime costs , cost effectiveness , cost utility , and cost benefit all compare extremely well to the alternatives involving replacement using implants or fixed prostheses .
INTRODUCTION Root canal treatment ( RCT ) success criteria inform us of the path to bony healing and of prognostic factors , but tell little about how the patient perceives , feels , or values RCT .
Patients choose , undergo , and pay for RCT , they live with the result , and inform their community .
The purpose of this narrative review was to appraise patient-centered outcomes of initial non-surgical RCT and nonsurgical retreatment , in adults .
Pain associated with root canal treatment.
AIM To determine the pain experienced by patients during root canal treatment  and to correlate with age and gender , pulpal diagnosis , previous periapical status , dental characteristics and length of treatment . METHODOLOGY One hundred and seventy-six patients ( 68 men and 108 women ) , with ages ranged from 6 to 83 years , were r and omly recruited . Patients completed a 10-cm visual analogue scale ( VAS )  that ranked the level of pain experienced during root canal treatment . RESULTS The mean pain level during root canal treatment was 1.2 + /- 0.8 in a VAS between 0 and 10 . Fifty-four per cent of patients did not experience pain . There were no significant differences in relation to gender or age groups . M and ibular teeth had a significantly ( P < 0.05 ) higher percentage incidence of pain in comparison with maxillary teeth . Pain was absent in 63 % of anterior teeth compared with 44 % in posterior ones ( P < 0.01 ) . Interventions shorter than 45 min result ed in a significantly higher percentage of pain absence ( P < 0.05 ) .  Root canal treatment  was significantly ( P < 0.05 ) more painful in teeth with irreversible pulpitis and acute apical periodontitis compared to the group with necrotic pulps and chronic apical periodontitis ( P = 0.049 ) . CONCLUSIONS Root canal treatment in teeth with irreversible pulpitis and acute apical periodontitis was more painful . Age , tooth type and length of the treatment were factors associated with increased risk for pain experienced during the procedure . Knowledge of pain levels endured by patients will allow dentists to decide when to use supplemental local anaesthesia
RESULTS Application of the Oral Health Impact Profile ( OHIP ) demonstrated that disease of pulpal origin affects quality of life with moderate severity , primarily through physical pain and psychological discomfort , and that RCT results in broad improvement of quality of life .
Satisfaction with RCT is extremely high , but cost is the primary reason for dissatisfaction .
Anxiety and fear affect RCT patients , profoundly influencing their behaviors , including treatment avoidance , and their pain experience .
Fear of pain is " fair " to " very much " prior to RCT .
Pain is widely feared , disliked , and remembered ; however , disease of pulpal origin generally produces moderate , but not severe pain .
RCT causes a dramatic decrease in pain prevalence and severity over the week following treatment .
Survival rates of teeth after RCT are very high ; complication rates are low .
Cost is a barrier to RCT , but initial costs , lifetime costs , cost effectiveness , cost utility , and cost benefit all compare extremely well to the alternatives involving replacement using implants or fixed prostheses .
INTRODUCTION Root canal treatment ( RCT ) success criteria inform us of the path to bony healing and of prognostic factors , but tell little about how the patient perceives , feels , or values RCT .
Patients choose , undergo , and pay for RCT , they live with the result , and inform their community .
The purpose of this narrative review was to appraise patient-centered outcomes of initial non-surgical RCT and nonsurgical retreatment , in adults .