Immediate implant placement is one of the treatment options in postextraction sites in anterior region. This article describes the high esthetic value of a single-tooth implant immediately placed in the anterior maxilla using a flapless approach and modifying a provisional restoration. The case reported illustrates the practical procedure involved in developing natural esthetics with modifying a provisional restoration. The technique provides an accurate impression of the soft tissue through the intraoral use of provisional restoration. The final restoration uses a custom-made titanium abutment and porcelain fused gold crown. The technique is relatively simple and provides excellent results from an esthetic point of view, which is demonstrated by the results of pink esthetic scores and white esthetic scores after 1 year.
Crowns ; Dental Implants, Single-Tooth ; Dental Porcelain ; Esthetics ; Humans ; Maxilla ; Titanium

It is well known that ketamine produces an increase in the heart rate and blood pressure. Lidocaine has a direct myocardial depressant effect with indirect stimulant effects mediated by the autonomic nervous system, and propranolol, beta-adrenergic receptor blockade, has negative chronotropic effects through the beta-adrenergic blockade. In order to investigate the effect of propranolol and lidocaine on the heart rate and blood pressure increased by ketamine, lidocaine, and/or propranolol were administered intravenously in awake patients. The results were as follows. 1) In ketamine(2 mg/kg) receiving group, the heart rate increased 16-19 beats per minute and systolic, diastolic and the mean blood pressure increased significantly. 2) In ketamine(2 mg/kg)-lidocaine(2 mg/kg) receiving group, the heart rate increased l2-14 beats per minute, and the systolic, diastolic and mean blood pressure increased significantly. 3) In ketamine(2 mg/kg)-propranolol(0.02 mg/kg) receiving group, the heart rate increased below 5 beats per minute and systolic, diastolic, and the mean blood pressure increased significantly. 4) In ketamine(2 mg/kg)-propranolol(0.02 mg/kg)-lidocaine(2 mg/kg) receiving group, the heart rate increased only 3-4 beats per minute and systolic, diastolic, and mean pressures increased significantly. From the above results, the chronotropic effect of ketamine was markedly attenuated by propranolol or propranolol-lidocaine but not attenuated by lidocaine, and the pressor effect was not attenuated by lidocaine, or propranolol and propranolol with lidocaine.
Autonomic Nervous System ; Blood Pressure* ; Heart Rate* ; Heart* ; Humans ; Ketamine* ; Lidocaine* ; Propranolol*

Over the past decades, conventional complete dentures were used for various patients although they have incomplete function. Overdenture using dental implants could help the improvement of denture function. In this case, a fully edentulous patient was treated with a conventional complete denture on the maxilla and implant retained overdenture retained by 2 freestanding implants placed in the anterior region of the mandible, following recommendations from the 2002 McGill. Locator attachments were used for retention of the mandibular overdenture. Patient was satisfied with the final maxillary full denture and mandibular implant retained overdenture in esthetic and functional aspect.
Dental Implants ; Denture, Complete ; Denture, Overlay ; Dentures ; Humans ; Mandible ; Maxilla ; Retention (Psychology)

Bone Substitutes ; Chlorhexidine ; Granulation Tissue ; Hygiene ; Inflammation ; Membranes ; Peri-Implantitis ; Tetracycline ; Tissue Banks ; Transplants ; Wound Healing

PURPOSE: We compared intra-individual visual outcomes and patient satisfaction after implantable contact lens (ICL) and Toric ICL implantation. METHODS: Twenty-eight eyes of 14 patients were enrolled in this retrospective study. One eye of each patient was assigned to ICL (ICL Group), and the contralateral eye was allocated to Toric ICL (Toric ICL Group). All patients were examined for visual acuity, refraction, intraocular pressure, slit lamp measurements, and satisfaction one week, one month, two months, and six months postoperatively. RESULTS: Mean spherical equivalents of the two groups were corrected from -7.83D (ICL Group) and -5.55D (Toric ICL Group) to 0.13D and 0.20D, respectively, and the mean refractive cylinders were corrected from 0.92D and 2.60D to 0.42D and 0.27D, respectively, at six months postoperatively. The myopias of these two groups and the astigmatism of the Toric ICL group were effectively corrected. The uncorrected visual acuity (UCVA) of the two groups were 1.02 and 1.05, respectively, at six months postoperatively. The safety index, efficacy index, predictability, and stability were favorable. There were no significant differences between the two groups in terms of postoperative UCVA, intraocular pressure(IOP), vaulting, noticeable complications, or patient satisfaction. CONCLUSIONS: The results show ICL implantation is effective treatment for high myopia, and Toric ICL implantation is a viable surgical option for the treatment of compound myopia astigmatism. Selection of proper phakic intraocular lens(IOL) is recommended for correcting astigmatism.
Astigmatism ; Eye ; Humans ; Intraocular Pressure ; Lenses, Intraocular ; Myopia ; Patient Satisfaction ; Retrospective Studies ; Visual Acuity

This study was aimed to furnish the data of facial bone fracture which was related regional and social environment and to aid diagnosis and treatment of the fracture. This is the retrospective and clinicostatical study on 625 patients with facial bone fracture. The patients were treated in the Dept. of Oral and Maxillofacial Surgery of Wonkwang University Hospital from Jan. 1, 1993 to Dec. 31, 1997. The result were as follows : The facial bone fractures occured most frequently in the twenties(32.3%) and male were predominent(77.4%) than female. The most frequent etiologic factor of facial bone fracture was fall down(42.8%) and midface fracture was traffic accident(63.4%). The most common site of fracture was symphysis(51.1%) and angle(29.7%), condyle(27.5%), ZMC(13.4%) were next in order of frequency. Of the 626 patients, 590 patients(89.5%) were treated with open reduction and only 36 patients(10.5%) were treated with closed reduction. In the blow, the ratio of angle fracture(50%) is especially high(the overall ratio 29.7%) and in the Out car TA, the ratio of ZMC fracture(34.6%) is especially high(the overall ratio 13.4%). In the fall-down, the ratio of symphysis(58.4%) and condyle fracture(33.6%) is especially high(the overall ratio 51.1%, 27.5%). Postoperatives complication were found in 35(5.6%) of 626 patients, in which mouth opening limitation(3%) was the most common. Above results suggest that early diagnosis and treatment of fracture site, systemic condition and associated injuries are nessary, and cooperative treatment with medical department should be performed.
Diagnosis ; Early Diagnosis ; Facial Bones* ; Female ; Humans ; Male ; Mouth ; Retrospective Studies ; Social Environment ; Surgery, Oral

OBJECTIVE: The aim of this study was to investigate the changes in the center of resistance of the maxillary teeth in relation to alveolar bone loss. METHODS: A finite element model, which included the upper dentition and periodontal ligament, was designed according to the amount of bone loss (0 mm, 2 mm, 4 mm). The teeth in each group were fixed with buccal and lingual arch wires and splint wires. Retraction and intrusion forces of 200 g for 4 and 6 anterior teeth groups and 400 g for the full dentition group were applied. RESULTS: The centers of resistance were at 13.5 mm, 14.5 mm, 15 mm apical and 12 mm, 12 mm, 12.5 mm posterior in the 4 incisor group; 13.5 mm, 14.5 mm, 15 mm apical and 14 mm, 14 mm, 14.5 mm posterior in the 6 anterior teeth group; and 11 mm, 13 mm, 14.5 mm apical and 26.5 mm, 27 mm, 25.5 mm posterior in the full dentition group respectively according to 0 mm, 2 mm, 4 mm bone loss. CONCLUSIONS: The center of resistance shifted apically and posteriorly as alveolar bone loss increased in 4 and 6 anterior teeth groups. However, in the full dentition group, the center of resistance shifted apically and anteriorly in the 4 mm bone loss model.
Alveolar Bone Loss ; Dentition ; Finite Element Analysis ; Incisor ; Periodontal Ligament ; Splints ; Tooth

A central nervous system (CNS) relapse is a rare but mostly fatal complication in patients with diffuse large B cell lymphoma (DLBCL). CNS involvement can occur as an isolated event or can be combined with progression of systemic disease. There are limited data on treatment outcomes of patients with DLBCL and secondary CNS involvement. We report the clinical data, treatments, and outcomes of two DLBCL patients with isolated CNS relapses involving the brain parenchyma. Isolated CNS disease involving the brain parenchyma may be potentially treatable as the initial relapse site after complete remission from systemic treatment.
Brain* ; Central Nervous System ; Central Nervous System Diseases ; Humans ; Lymphoma, B-Cell* ; Lymphoma, Large B-Cell, Diffuse ; Recurrence*

No abstract available.
Classification* ; Female ; Hydatidiform Mole* ; Pregnancy

PURPOSE: To report and review several cases of uncommon ocular manifestations in neurofibromatosis patients. CASE SUMMARY: A 19-year-old woman diagnosed with type 2 neurofibromatosis visited our hospital with amblyopia of the right eye and mild visual disturbance of the left eye. Best corrected visual acuity was 20/250 in the right eye, 20/25 in the left eye and relative afferent pupillary defect in the right eye was observed. Fundus examination of both eyes showed papilledema. Magnetic resonance imaging showed schwannoma from the optic nerve to the optic chiasm. A 28-year-old woman diagnosed with type 2 neurofibromatosis visited our hospital with amblyopia of the right eye. Best corrected visual acuity was finger count in the right eye, 20/20 in the left eye and relative afferent pupillary defect in the right eye was observed. Fundus examination of the right eye showed a slightly elevated lesion at the macula, as well as dragged optic disc and retinal vessels to the macula. An 8-year-old girl diagnosed with type 1 neurofibromatosis visited our hospital with enophthalmos and strabismus of the left eye. On exophthalmometry, enophthalmos in the left eye was found; measurements were 15.0 mm in the right eye and 13.0 mm in the left eye. Three-dimensional computed tomography revealed sphenoidal hypoplasia and a left lateral orbital wall defect. CONCLUSIONS: The authors of the present study report on neurofibromatosis patients who had an uncommon ocular manifestation. Neurofibromatosis can represent various ocular manifestations but reports of compressive optic neuropathy, dragged disc syndrome and sphenoidal hypoplasia are rare.
Adult ; Amblyopia ; Child ; Enophthalmos ; Eye ; Female ; Fingers ; Humans ; Magnetic Resonance Imaging ; Neurilemmoma ; Neurofibromatoses ; Neurofibromatosis 1 ; Neurofibromatosis 2 ; Optic Chiasm ; Optic Nerve ; Optic Nerve Diseases ; Orbit ; Papilledema ; Pupil Disorders ; Retinal Vessels ; Strabismus ; Visual Acuity ; Young Adult