PURPOSE : The purpose of this study was to determine proper position and angulation of an implant for immediate implantation. MATERIALS AND METHOD : From the years 1997 to 2000, 52 Denta scanR views, 22 upper and 32 lower jaw with an average age of 43 and 40 respectively, were investigated, which comprise intact upper and lower 6 anterior teeth and premolars. on the Denta scanR, the optimal placement for the immediated implantation was simulated. The measuring methods included. 1) Angulation difference between tooth long axis and alveolar bone process. 2) Angulation difference of long axis between tooth and installing fixture 3) Distance between center of tooth at cervical area and center of fixture. 4) Distance from root apex to the bone limit of vital structure. One sample t-test was used for statistical analysis. RESULT : The results were as follows. 1) At the maxillary central incisor and lateral incisor, angulation difference of long axis between tooth and installing fixture was respectively 0.5 and 3.2degrees with the fixture center's palatally positioned 2mm apart from tooth center. 2) At the lower anterior 6 teeth, that was about -2.8degree to -4.6degree with the fixture center's lingually positioned 1mm apart from tooth center. 3) At the maxillary canine and premolar, that was respectively 11.8degree and 7.2degree with the fixture center palatally positioned 2~2.4mm apart from tooth center. 4) At the lower premolar area, that was about 0degree to 2degree with the fixture center's lingually positioned 0.5~1mm apart from tooth center. 5) Distance from root apex to the bone limit of vital structure, at the maxillary anterior and premolars, was the range of 10 to 12mm, and at the mandibular anterior teeth and the 1st premolar, that was the range of 18 to 20mm. CONCLUSION : The proper implant position of maxillary anterior and premolar teeth is as paralleled as or more buccally angulated than long axis of tooth with the fixture center's palatally positioned. in mandibular anterior region, long axis of implants is lingully angulated compared with compared with long axis of tooth and in premolar, almost parelleled with long axis of tooth and alveolar process.
Alveolar Process ; Axis, Cervical Vertebra ; Bicuspid ; Dental Implantation* ; Dental Implants* ; Incisor ; Jaw ; Statistics as Topic* ; Tooth

The routine of endoscopy in the evaluatien of gastrointestinal bleeding demonatratd that telangiectasia in the upper gastrointestinal tract may be responsible for the chronic recurrent bleeding. If the bleeding lesion within the reach of the endoscaiye, it is amenahle to endoscopic therapy, One of the several treatment modalities that has been employed is laser photocoagulation. We report a case of ef fective laser therapy in a 63-years old woman presented with a about 3 years history of recurrent upper gastrointestinal bleeding and persistent iron deficieney anemia in gaatic multiple telangeictasias. An upper gastrointestinal endoscopy demonstrated variable sized multiple bleeding telangectatic lesions in the entire stomach. Nd-YAG laser photocoagulation was appligd in 0.5 seconds pulse of 60-70W power(2300 joules and total 7 sessions). All legions in the stomach were treated. Local epinephrine injection prior to laser treatment was carried out in the telangiectatie lesions greater than 1 cm. Follow-up endoscopy 5 months after laser treatment demonstrated no telangiectatic lesions in the stomach and no episodes of upper gastrointestinal bleeding were noted and the other symptoms improved.
Anemia ; Endoscopy ; Endoscopy, Gastrointestinal ; Epinephrine ; Female ; Follow-Up Studies ; Hemorrhage ; Humans ; Iron ; Laser Therapy ; Lasers, Solid-State ; Light Coagulation* ; Middle Aged ; Stomach ; Telangiectasis* ; Upper Gastrointestinal Tract

The routine of endoscopy in the evaluatien of gastrointestinal bleeding demonatratd that telangiectasia in the upper gastrointestinal tract may be responsible for the chronic recurrent bleeding. If the bleeding lesion within the reach of the endoscaiye, it is amenahle to endoscopic therapy, One of the several treatment modalities that has been employed is laser photocoagulation. We report a case of ef fective laser therapy in a 63-years old woman presented with a about 3 years history of recurrent upper gastrointestinal bleeding and persistent iron deficieney anemia in gaatic multiple telangeictasias. An upper gastrointestinal endoscopy demonstrated variable sized multiple bleeding telangectatic lesions in the entire stomach. Nd-YAG laser photocoagulation was appligd in 0.5 seconds pulse of 60-70W power(2300 joules and total 7 sessions). All legions in the stomach were treated. Local epinephrine injection prior to laser treatment was carried out in the telangiectatie lesions greater than 1 cm. Follow-up endoscopy 5 months after laser treatment demonstrated no telangiectatic lesions in the stomach and no episodes of upper gastrointestinal bleeding were noted and the other symptoms improved.
Anemia ; Endoscopy ; Endoscopy, Gastrointestinal ; Epinephrine ; Female ; Follow-Up Studies ; Hemorrhage ; Humans ; Iron ; Laser Therapy ; Lasers, Solid-State ; Light Coagulation* ; Middle Aged ; Stomach ; Telangiectasis* ; Upper Gastrointestinal Tract

No abstract available.
Decompression* ; Head* ; Osteonecrosis*

No abstract available.
Animals ; Knee Joint* ; Knee* ; Mice* ; Parturition*

No abstract available.
Animals ; Mice* ; Spleen*

To minimize the period of brain ischemia and the potential for neurologic damage during aortic arch replacement, we used the arch-first technique. First case was a 28-year-old female with extensive aneurysm involving ascending, arch and descending thoracic aorta. Exposure was obtained via a bilateral via a bilateral thoracotomy (clamshell incision) in the anterior 4th right and 3rd left intercostal space with oblique sternotomy. To prepare for arch perfusion, the side-arm graft(10mm) was anastomosed to the aortic graft, opposite the site of the planned anastomosis to the arch vessels. After completing the arch anastomosis under total circulatory arrest(37min) and retrograde cerebral perfusion(12min), aortic graft was clamped on either side and the arch was perfused via side-arm graft for 36min. When distal aortic anastomosis was finished, distal clamp of aortic graft was released and arch vessels were perfused via common femoral artery, and the proximal aortic anastomosis was accomplished. The patient was discharged with no event. Second case was a 48-year-old male with extensive aneurysm involving ascending, arch, and aortic regurgitaiton(grade III/IV). This case was also done using the clamshell incision. Aortic valve replacement was done by valved-conduit(Vascutek 30mm), both coronary artery anastomosis using Cabrol's procedure. Last operation procedure was the same as the 1st case.
Adult ; Aneurysm* ; Aorta, Thoracic* ; Aortic Valve ; Brain Ischemia ; Coronary Vessels ; Female ; Femoral Artery ; Humans ; Male ; Middle Aged ; Perfusion ; Sternotomy ; Thoracotomy ; Transplants

No abstract available.
Cushing Syndrome*

PURPOSE : The Purpose of this study was to investigate the anti-inflammatory effect on combination dosage of dexamethasone and naproxen after removal of impacted 3rd molars. We evaluated postoperative pain, swelling, and mouth opening limitation quantitatively. PATIENTS AND METHODS : Removal of an impacted lower third molar was done under local anesthesia with 2% lidocaine to 239 healthy patients. We randomly gave experimental group 1.5mg dexamethasone and 200mg naproxen three times a day for postoperative 2days, and also gave control group 200mg naproxen alone three times a day for postoperative 2days. Swelling and pain were measured by visual analogue scale (VAS). Mouth opening limitation was measured by maximum interincisal opening length. We estimated these measurements in the first and second postoperative days. Differences between experimental and control group were investigated considering age, sex, BMI(body mass index), impacted type, surgical site(right or left), and operation time by independent student T-test. RESULTS : In general, swelling, pain, and mouth opening limitations were significantly reduced (p<0.01) by combination dose of dexamethasone and naproxen in postoperative one day. But there was no difference in pain on the second postoperative day. As variables being considered, in the postoperative pain, there was significant difference between experimental group and control group in only male, little bony removal group, left side extraction group. In case of postoperative swelling, there was no significant differences in male, adolescence, long operating time group (over 20 minutes), medium BMI group and right side extraction group. In case of postoperative mouth opening limitation, there was significant difference between only female and long operating time group (over 20 minutes). CONCLUSION : Variables being considered, postoperative swelling was more reduced by the combination dose of naproxen and dexamethasone than that of naproxen alone after removal of impacted 3rd molars. But there was varoius results in pain and mouth opening limitation.
Adolescent ; Anesthesia, Local ; Dexamethasone* ; Female ; Humans ; Lidocaine ; Male ; Molar ; Molar, Third* ; Mouth ; Naproxen* ; Pain, Postoperative

No abstract available.
Diaphragmatic Eventration* ; Humans ; Infant, Newborn*