![]() ![]() The purpose of this study was to determine if laser Doppler flowmetry can measure induced changes in pulpal blood flow. ![]() A rapid, accurate, noninvasive method of determining pulpal blood flow would be helpful in determining pulpal vitality. Denervated teeth should not be treated if no clinical or radiological signs of devitalisation exist. The results revealed the stability of pulp 1 year after injury. During the second and third years, no reinnervation occurred, but clinical signs of pulp devitalisation of denervated teeth occurred in 18% or 1% of the initially non-responsive affected teeth. Three years after injury, 8% of teeth remain denervated. A year after injury, 95% of incisors, 91% of canines, 94% of premolars, and 82% of molars were reinnervated. All 23/186 initially non-responsive, unaffected, contralateral corresponding teeth were reinnervated within 6 weeks. Most teeth (34%) were reinnervated from 6 weeks to 3 months. Six weeks after injury, 19% of teeth were reinnervated by 1 year after injury, 92% of initially non-responsive teeth were reinnervated. Tests after injury showed non-responsive teeth in 81% of affected teeth. Two hundred and seventy-three teeth were affected and had potentially impaired innervation. Fifty patients and 459 teeth were examined. This study assessed the reinnervation period, the number of denervated teeth, and their clinical importance. The sensitivity of teeth anterior to a fracture between the mental and mandibular foramina has been tested and followed up until reinnervation or 3 years has passed. ![]() CPT had moderate accuracy when evaluating vital (specificity = 0.84) and nonvital (sensitivity = 0.87) teeth. EPT showed high accuracy when testing vital teeth (specificity = 0.93) but low accuracy when assessing nonvital teeth (sensitivity = 0.72). LDF and PO were the most accurate diagnostic methods, and HPT was the least accurate diagnostic method. The pooled estimates of sensitivity for CPT, EPT, HPT, LDF, and PO were 0.87, 0.72, 0.78, 0.98, and 0.97, respectively. A random effects model was used to calculate pooled estimates of sensitivity, specificity, adjusted accuracy, adjusted PPV, and adjusted NPV.Ī total of 125 articles were identified, and 28 studies were included for the final review. Sensitivity, specificity, adjusted accuracy, adjusted PPV, and adjusted NPV were calculated from those values, if not presented. True-positive, false-positive, true-negative, and false-negative values were extracted from data in each study. Three electronic databases were searched from January 1964 to December 2016. The aim of this systematic review was to investigate and compare the diagnostic accuracy including sensitivity, specificity, adjusted accuracy, adjusted positive predictive value (PPV), and adjusted negative predictive value (NPV) of cold pulp testing (CPT), heat pulp testing (HPT), electric pulp testing (EPT), laser Doppler flowmetry (LDF), and pulse oximetry (PO).
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