PURPOSE: The present study aimed to investigate the relationships between the crown form of the upper central incisor and their labial inclination, overbite, and overjet. MATERIALS AND METHODS: Maxillary and mandibular casts of 169 healthy dentitions were subjected to 3D dental scanning, and analyzed using CAD software. The crown forms were divided into tapered, square, and ovoid based on the mesiodistal dimensions at 20% of the crown height to that at 40%. The degree of labial inclination of the upper central incisor was defined as the angle between the occlusal plane and the line connecting the incisal edge and tooth cervix. The incisal edges of the right upper and lower central incisor that in contact with lines parallel to the occlusal plane were used to determine the overbite and overjet. One-way ANOVA was performed to compare the labial inclination, overbite, and overjet among the crown forms. RESULTS: The crown forms were classified into three types; crown forms with a 20%/40% dimension ratio of 1.00±0.01 were defined as square, >1.01 as tapered, and <0.99 as ovoid. The labial inclination degree was the greatest in tapered and the least in square. Both overbite and overjet in tapered and ovoid were higher than those in square. CONCLUSION Upper central incisor crown forms were related to their labial inclination, overbite, and overjet. It was suggested that the labial inclination, overbite, and overjet should be taken into consideration for the prosthetic treatment or restoring the front teeth crowns.

PURPOSE: The present study aimed to investigate the relationships between the crown form of the upper central incisor and their labial inclination, overbite, and overjet. MATERIALS AND METHODS: Maxillary and mandibular casts of 169 healthy dentitions were subjected to 3D dental scanning, and analyzed using CAD software. The crown forms were divided into tapered, square, and ovoid based on the mesiodistal dimensions at 20% of the crown height to that at 40%. The degree of labial inclination of the upper central incisor was defined as the angle between the occlusal plane and the line connecting the incisal edge and tooth cervix. The incisal edges of the right upper and lower central incisor that in contact with lines parallel to the occlusal plane were used to determine the overbite and overjet. One-way ANOVA was performed to compare the labial inclination, overbite, and overjet among the crown forms. RESULTS: The crown forms were classified into three types; crown forms with a 20%/40% dimension ratio of 1.00±0.01 were defined as square, >1.01 as tapered, and <0.99 as ovoid. The labial inclination degree was the greatest in tapered and the least in square. Both overbite and overjet in tapered and ovoid were higher than those in square. CONCLUSION Upper central incisor crown forms were related to their labial inclination, overbite, and overjet. It was suggested that the labial inclination, overbite, and overjet should be taken into consideration for the prosthetic treatment or restoring the front teeth crowns.

　　Adhesion formation after abdominal surgery is a commonly recognized entity. Many studies have shown that women giving birth by cesarean section are at the risk of developing complications related to the postoperative formation of adhesions including ileus, bowel obstructions, impaired fertility, and chronic abdominal pain. Among several adhesion barriers, one that has been tested in randomized, controlled trials is the hyaluronic cid-carboxymethylcellulose (HA/CMC) membrane (Seprafilm®: Genzyme, Cambridge, MA, USA). This bioresorbable membrane serves as a mechanical barrier between surgically damaged tissues and resorbs afterwards. At our institution, we have used HA/CMC in cesarean sections. We report our experience with this patient population using placement of HA/CMC.　　This study enrolled 45 women who had undergone cesarean sections twice or more who had received HA/CMC during the previous cesarean section between January 2013 and November 2014. The incidence of adhesions to the area of abdominal wall incisions and uterine surface, intestinal obstructive symptoms, and adverse events were studied. The incidence of adhesions to midline incisions was 4.4% (n＝2). The filmy adhesion by major omentum was detected in these two cases. The incidence of adhesions to uterine surface was 2.2% (n＝1). The moderate thickness adhesion was detected at the left side of the vesico-uterine peritoneal incision by pelvic peritoneum which did not affect the operative procedure. No symptoms related to intestinal obstructions such as abdominal pains, nausea and vomiting were observed. No adverse events were observed. These three cases had fever which had nothing to do with HA/CMC applications but was attributable respectively to influenza infection, mastitis, phlebitis associated with a needle procedure.　　HA/CMC was considered a useful adhesion barrier membrane for use in cesarean sections as an adjunct intended to reduce the incidence of postoperative adhesions between the abdominal wall and the underlying viscera such as omentum, small bowel, and between the uterus and surrounding structures.

  A 41-year-old woman, gravid 3, para 3, was admitted to the Department of Obstetrics and Gynecology at Tsuchiura Kyodo General Hospital, complaining of a tender, gradually enlarging mass in the right inguinal region during menses. Examination found the mass was about 2 cm in diameter, which protruded slightly (on lying position?). During menstrual periods, the mass enlarged and the pain intensified, but between menses, the mass decreased in size and the pain subsided. The case was diagnosed as inguinal endometriosis and then a preoperative GnRH analog therapy was given for six weeks to make a good operative local condition. Surgery was performed under general anesthesia and a mass about 4.0×3.0 cm in diameter near inguinal ligament was removed. The cut surface revealed small hemorrhagic areas or spaces. Microscopic examination of the dissected mass confirmed the diagnosis of inguinal endometriosis. It was found that the patient had a moderate inguinal swelling on the first visit to the hospital as an outpatient 7 days after operation, but the swelling disappeared shortly afterword. She has been receiving a post-operative GnRH analog therapy for 3 months to maintain a good local condition. The authors concluded thatthe appearance of a lump in the inguinal region and objective changes of the lesion in relation to the menstrual cycle should be considered as the symptoms of endometriosis.

  We report a case of new-onset depressive disorder in a patient with a history of rectal endometriosis treated with GnRH analog and no previous psychiatric history. This medical history allowed us to suspect the possibility of a link between GnRH analog and depression. It also highlighted the need to screen patients treated with GnRH analog for depression.
  The patient was 41-year-old woman who had been diagnosed with rectal endometriosis. She was referred to the Gynecology Department of Tsuchiura Kyodo General Hospital. The subjective symptoms included cyclic abdominal pains and rectal bleedings. The patient had undergone total abdominal hysterectomy and left salpingo-oophorectomy for endometriosis two years before. She was started by her first gynecologist on GnRH agonist (nafarelin acetate) and the symptoms disappeared soon. But several weeks after the initiation of the GnRH agonist treatment, she began to feel depressed and hopeless. She visited a psychiatric hospital and diagnosed as having depression. She was given anti-depressive drugs and inpatient treatment at the psychiatric hospital. Her clinical course was reviewed by her second gynecologist, and she was suspected to have developed depressive disorder by GnRH analog treatment. She stopped taking GnRH analog medication and started progestin (Dinagest) therapy. She became soon free of depressive disorder and then anti-depressive drugs with rectal endometriosis well controlled. This case also suggested Dinagest is a recommended drug for rectal endometriosis.

　　Placental abruption occurs suddenly and may cause maternal and fetal mortality. Forced delivery is the only way to improve perinatal outcome, but the aftereffects could be severe despite a high survival rate.　　Our hospital manages approximately 170 cases of maternal transport annually, including cases of severe placental abruption. Longer transport time can lead to undesirable maternal and fetal outcome. Hence this study, we compared the perinatal backgrounds and outcome of placental abruption retrospectively between the cases managed by maternal transport and by the local hospital (our hospital). The study included 54 cases of placental abruption during the period from January 2008 to December 2012, of which 27 cases were managed by our hospital, the other halves were managed by maternal transport. There were 6 intrauterine fetal deaths but not a single maternal death. There were no significant differences in the amount of blood lost and obstetric DIC (disseminated intravascular coagulopathy) score between two groups (p＝0.342, p＝0.649), and the number of cases that needed anti-DIC therapy and blood transfusion in each group was statistically similar (p＝0.807, p＝0.115). The time taken from the on-set of placental abruption to delivery was significantly shorter for the cases managed by our hospital (in-hospital management 143±133 minutes, maternal transport management 265±176 minutes, p‹0.05), while obstetric DIC score and Apgar score showed no significant differences (p＝0.336, p＝0.780) between the two groups. Thus, it could be said there were no correlations between the time taken from onset to delivery and perinatal outcome. It should be noted, however, maternal and fetal outcome of placental abruption could be fatal even with the rapid intervention, so quick diagnosis and management at the first contact are crucial. Thus, we concluded that forced delivery managed by the local hospitals is necessary for the potential better perinatal outcome, and an ideal system to manage maternal and/or neonate transport after the delivery should be established immediately.