ABSTRACT
Objective To discuss the clinical effect of different scaffold in pulp vascular regeneration . Methods 22 young permanent teeth with periapical lesions were randomly divided into observation group and control group,11cases in each group .After the disinfection protocol was completed , the apexes of the control group were irritated to initiate bleeding to produce a blood clot to achieve pulp revascularization ,while the observation group used platelet rich plasma as physical scaffold to operate pulp revasculrization .Results In the control group , the two patients showed painful tooth at 1 and 8 months,the three patients showed healed periapical lesions and narrowed apical foramen at 12 and 18 months ,the six patients showed healed periapical lesions and closure of the apical fora -men at 12 and 18 months.In the observation group ,the three patients showed painful tooth at 1,3 and 8 months,the four patients showed healed periapical lesions and narrowed apical foramen at 12 and 18 months,the four patients showed healed periapical lesions and closure of the apical foramen at 12 and 18 months.There was no statistically significant difference between the observation group and control group by Fisher's exact probabilities (P=1.000). Conclusion Platelet rich plasma is potentially an ideal scaffold for pulp revascularization .
ABSTRACT
@# Objective To investigate the refraction status of low vision children aged 4~14 years old. Methods 228 children (376 eyes) with low vision aged 4~14 years old were recruited with retinoscopy optometry under ciliary muscles paralysis. Results 53% (72 eyes) of the preschool group had hyperopia, 41.2% (56 eyes) had myopia, and 6.0% (8 eyes) had mix astigmia. 40.0% (96 eyes) of the school-age group had hyperopia, 55.0% (132 eyes) had myopia, and 5.0% (12 eyes) had mix astigmia. The incidence of hyperopia was higher in the preschool group than in the school-age group (P<0.05). The majority of the refraction status in both groups were ranged in high level. After refraction correction and using visual aid device, 27.4% of the low vision children improved, and the number was higher in children who had better naked vision (P<0.01). Conclusion The refraction status of pre-school children with low vision is mainly hyperopia. For school-aged children, the refraction status shows a majority of myopia. The refraction errors of low vision children are mainly ranged in high level and partial low vision children improved after refraction correction
ABSTRACT
With the improvement of medical laws,the burden on doctors is getting heavier and heavier.Meanwhile,more and mor attention is being paid to the informed consent right of patients for the purpose of avoiding compensation for malpractive.Through analyzing the jurisprudential base of informed consent right,comparing the difference between informed consent right and“volenti non fit injuria”on law of tort,the article aims at exploring the relationship between informed consent right and doctor’s responsibility.