ABSTRACT
Anal fistula is a tract between anorectal canal and perianal skin. It usually develops after perianal abscess and it is one of the most common surgical diseases that presents with persistent drainage from the tract. Recurrence of fistula and gas or fecal incontinence are important problems after surgical management of fistula particularly in recurrent fistula. The aim of this study is to evaluate the rate of recurrence and incontinency after open fistulectomy with repair of sphincter muscles. In a prospective interventional semi-empirical study 98 patients with recurrent fistula were evaluated for recurrence and incontinency during 10 years [1999-2008] follow up after treatment by fistulectomy and primary sphincter muscles repair. From 98 patients [96 male and 2 female] of recurrent anal fistula, 27 patients have high anal fistula and 71 have low [common] fistula-in-ano. Ninety six patients were developed prolonged neither gas incontinence nor recurrence. One patient who was considered as type 2 diabetes, presented with wound infection postoperatively. In this patient fistulectomy and sphincter repair was performed after control of wound infection. One male patient was developed long life gas incontinence. In compare with other surgical methods, fistulectomy and sphincter repair was shown the lowest rate of recurrence. One case of permanent gas incontinence and no case of fecal incontinence was found
ABSTRACT
Removable orthodontic appliances could increase the prevalence of Candida albicans and stomatitis in mouth of treated patients. To examine the effect of good oral hygiene on prevention of Candida albicans increase in children under treatment with removable arthodontic appliances. In this cross-sectional study, 30 children aged between 8-12 years old who were treated with removable orthodontic appliances and 30 healthy children in the same age range as control group were selected. One month after giving instructions on oral hygiene, samples were taken from patients' oral mucosa. The specimens were assessed by colony formation and germ tube test. Statistical analysis was performed using Chi-square test with 95% confidence to compare the study groups. There were significant differences between the two groups regarding the redness, soreness, and inflammation which were more frequent in orthodontic patients [p=0.03]. Colony formation was significantly higher in orthodontic patients than control group [P<0.001]. In addition, germ tube was more obvious in samples of orthodontic patients than control group [P=0.045]. Despite the practice of good oral hygiene, application of removable orthodontic appliances leads to an increase in prevalence of Candida albicans
Subject(s)
Humans , Orthodontic Appliances, Removable , Prevalence , Candida albicans , Child , Oral Hygiene , Cross-Sectional StudiesABSTRACT
Regarding the dependency of successful long-term treatment by implant based prostheses on passive adaptation and since failing to achieve this adaptability may have crucial biological and mechanical consequences and threats the future treatments, we conducted the present research with the aim of comparing dental implants transfer system by close tray impression technique when stock and special trays have been used. In this study, impression material was polyvinyl siloxane. During this experimental research, 10 impressions in each group and totally 30 impressions were prepared. A stainless steel model containing 4 implants to the diameter of 4 mm in the holes were presented and impression procedure was performed by providing 10 metal stock trays, 10 plastic trays and 10 light cure resin special trays using polyvinyl siloxane. Putty and light body impressions were used simultaneously with stock trays and medium body impression material were used with special trays. Then abutments were ried on analog by the use of ball top screws. Distances between ball top centers and third ball top as a reference inner point were measured in three dimensions. ANOVA one-directional test and Turkey multiple contrasts were also used for data analysis. The result of distance differences, out of using special tray and stock trays are meaningful. In dental implant impression technique using close method, metal trays have similar accuracy to that of special trays