No Abstract Available.
Silicones*

No abstract available.
Silicones*

As the inaccuracy which was made in implant impression prevented passive fit,it needed to solder the sectioned framework at several locations to correct the inaccuracy. Many clinicians have suggested impression techniques which could make passive fit between implant and superstructure. The purpose of this research was to measure and compare the accuracy of three methods of taking impression with the strain amplifier. The experimental groups were classified as follows : Group I; splinted the two parts with Futar D Occlusion. Group II; splinted the two parts with DuraLay. Group III; didn't splint the two parts. The results were as follows ; 1.The values of strain in the vertical and horizontal surfaces were increased in the order of groupI,group II and group III. 2.Group I showed higher accuracy of the duplicated casts in the vertical and horizontal surfaces than group IIand group III(p<0.05). 3.There were no significant differences in the accuracy of the duplicated casts between group IIand groupIII. From the above results,it is considered that the splinting method of impression copings could make an influence on the accuracy of the master casts.To improve the accuracy of the master casts, splinting the squared impression copings with the additional silicone occlusion materials is recommendable.
Silicones ; Splints

No abstract available.
Contracture* ; Silicones*

No abstract available.
Silicones* ; Transplants*

PURPOSE: To investigate whether there was any difference in anterior capsular opening area between the use of silicone intraocular lens(IOL) and acrylic IOL after continuous curvilinear capsulorhexis(CCC). METHODS: In 42 eyes, acrylic IOL(Acrysof(R), Alcon, U.S.A.) were inserted into the capsular bag during phacoemulsification, and in 36 eyes silicone IOL(Chiroflex II(R) , Chiron, U.S.A.) were inserted. The reduction rate of anterior capsular opening area at first, second, third and sixth postoperative month were compared between the two groups. RESULTS: On the whole, the reduction in anterior capsular opening area was larger by 0.574 mm 2 when silicone IOL was used, but the different was not statistically significant(P= .061). The result was the same at 1 month(P= .149), 2 months(P= .144), 3 months(P= .223), 6 months(P= .163) after surgery. CONCLUSIONS: We concluded that there was little difference in the changes of anterior capsular opening area after CCC between the use of silicone IOL and acylic IOL, and other factors should be considered.
Phacoemulsification ; Silicones

No abstract available.
Paraffin* ; Silicones*

No Abstract Available.
Blepharoptosis* ; Silicones*

Authors analysed the surgical results of superior oblique silicone expander for the treatment of superior oblique overaction in 8 patients (15 eyes) who were operated at St Mary's Hospital, Catholic University Medical College from October 1990 to December 1991. The results were as follows: 1. Preoperatively, the patients demonstrated versions of +2 overaction in 6 eyes (40%) and +3 to +4 overaction in 9 eyes (60%), And demonstrated A-patterns between 20 delta to 55 delta with a mean of 33 delta. 2. Postoperatively, of the 9 eyes with +3 to +4 overaction, 6 eyes (66.7%) showed no overaction and 3 eyes (33.3%) had +1 residual overaction. Of the 6 eyes with +2 overaction, 4 eyes (66.7%) showed no residual overaction, while 2 eyes (33.3%) had +1 residual overaction. 3. Postoperatively. reduction of A-pattern was from 16 delta to 51 delta with a mean of 27 delta. Bases on these results, it appears that the silicone expander technique is useful for the treatment of superior oblique overaction.
Humans ; Silicones* ; Tendons*

No abstract available.
Breast* ; Silicon* ; Silicones*