• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.40 no.4
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• pp.188-194
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• 2014

For large membrane perforations that develop during sinus-bone grafting, we performed repairs using a pedicled buccal fat pad and a resorbable collagen membrane simultaneously with the bone graft. This study included eight patients. Postoperative maxillary sinusitis developed in two patients, which we managed with incision and drainage, and antibiotics. Ultimately, six patients received 12 implants, three of which failed (75% success). Implant replacement was performed after the removal of the failed replacement, at which point the prosthetic treatment was considered complete. In all of the six cases that we were able to follow-up with, the sinus-bone graft was healing favorably. We observed that the sinus bone height decreased gradually with time. Based on these case series, we conclude that our procedure of repairing large sinus-membrane perforations with a pedicled buccal fat pad and a collagen membrane is a reliable technique.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• v.37 no.6
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• pp.496-504
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• 2011

Introduction: This study compared the alveolar bone density of the mandible according to gender, age and position using Cone-beam computed tomography (CT). Materials and Methods: The maxillofacial CT scan data was obtained from 60 Korean patients. In addition, the alveloar bone density of 5 males and 5 females with normal occlusion aged from 10 to 70 years was measured at the buccal cortical bone, cancellous bone and lingual cortical bone, as well as at the position of the incisors, canines, premolars and molars. Results: The age-specific mean bone density was highest in patients in their third decade. The buccal cortical bone of the molars showed the highest bone density. Males in their fifties and sixties had a higher bone density in the cancellous bone in the region of the premolars and the buccal cortical bone of the molars, respectively, than females but there was no significant difference between males and females in the other parts. The cancellous bone density was highest in those in their twenties and thirties, and tended to decline up to their seventh decade. Conclusion: These results revealed a significantly different bone density according to gender, age and position in the Korean population. In addition, it is possible to predict the bone density based on these results.

• The Journal of Korean Academy of Prosthodontics
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• v.30 no.1
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• pp.125-132
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• 1992

The purpose of this study was to evaluate the effect of the metal coping design on the fracture resistance of ceramometal crown. The Ni-Cr alloy(Supranium, Krupp Co., German) and Vaccm-fired porcelain powder(Vita VMK 689, Vita Co., Germany) were used in this study. The measurement of fracture resisitance of ceramometal crown was done with Instron Universial Testing Machine(Instro Co., Model no.4201). The obained results were as fellows : 1. The fracture resistance measured at the buccal cusp tip was the highest value in the group that those position of ceramometal junction was 2mm superior to the lingual finshing margin(100.25Kg) and the fracture resistance revealed on order of the group that those position was 2mm buccal to the central groove(51.64Kg). 2. The fracture resistance measured at the central groove was higher value in the group that those position was 2mm lingual to the central groove than in the group that those position was 2mm lingual to the central groove than in the group that those position was 2mm superior to lingual finishing margin(132.48Kg). 3. In all cases, the fracture resistance at the central groove was higher than that at the buccal cusp tip.

• Archives of Pharmacal Research
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• v.26 no.11
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• pp.973-978
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• 2003

A polymeric film composed of Carbopol, Poloxamer and hydroxypropyl methylcellulose was prepared to develop a buccal patch and the effects of composition of the film on adhesion time, swelling ratio, and dissolution of the film were studied. The effects of plasticizers or penetration enhancers on the release of triamcinolone acetonide (TAA) were also studied. The hydrogen bonding between Carbopol and Poloxamer played important role in reducing swelling ratio and dissolution rate of polymer film and increasing adhesion time. The swelling ratio of the composite film was significantly reduced and the adhesion time was increased when compared with Carbopol film. As the ratio of Poloxamer to hydroxypropyl methylcellulose increased from 0/66 to 33/33, the release rate of TAA decreased. However, no further significant decrease of release rate was observed beyond the ratio of 33/33. The release rate of TAA in the polymeric film containing polyethylene glycol 400, a plasticizer, showed the highest release rate followed by triethyl citrate, and castor oil. The release rate of TAA from the polymeric film containing permeation enhancers was slower than that from the control without enhancers. Therefore, these observations indicated that a preparation of a buccal patch is feasible with the polymeric film composed of Cabopol, Poloxamer and hydropropyl methylcellulose.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.13 no.4
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• pp.450-455
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• 1991

Pleomorphic adenoma is a circumscribed tumor characterized microscopically by its pleomorphic or mixed appearance, and its clearly recognizable tissue intermingled with areas of mucoid, myxoid, or chondroid appearance. Plemorphic adenoma, the most common tumor of the salivary glands, is now generally accepted as epithelial and benign, and therefore an adenoma. Pleomorphic adenoma occurs about 10 times more often in the parotid gland than in the submandibular gland, and is rare in the sublingual gland of the major salivary gland. And it occurs most often in the parotid and lip, but is very rare in the buccal mucosa of the minor salivary gland. The reported age of occurrence for pleomorphic adenoma ranges from 5 to 84 years, with a peak incidence during the third decade. We experienced a case of pleomorphic adenoma which occurring in buccal mucosa of 13-year-old boy. And so both the site of origin and age of occurrence make this case unusual. This lesion was treated with surgical excision. No specific change has seen in 1 year postoperative follow-up.

• Maxillofacial Plastic and Reconstructive Surgery
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• v.35 no.3
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• pp.174-177
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• 2013

Bisphosphonate-related osteonecrosis of the jaw (BRONJ) is a disease characterized by jaw necrosis and delayed wound healing in patients who had received bisphosphonates. Buccal fat pad (BFP) can be used as a pedicled flap in the posterior region of the oral cavity. BFP pedicle flap needs simple surgical technique and it shows less donor site morbidity and aesthetic problem than other vascularized flap. BFP pedicled flap was fed by 3 arteries-facial, internal maxillary, and transverse facial artery. Osteomyelitis was generally related with poor blood supply. Thus, rich blood supply of BFP pedicle flap can have a potential advantage to BRONJ patients. In this case report, we presented 3 BRONJ patients treated by BFP pedicle flap after sequestrectomy.

• The Journal of the Korean Society for Microbiology
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• v.22 no.4
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• pp.403-411
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• 1987

This study investigated whether a correlation exists between proteinase activity, phospholipase activity and adherence of Candida albicans to buccal epithelial cells by using of various strains isolated from oral cavity. The proteinase activity of 30 strains was tested by culture on agar media that contained bovine serum albumin as a nitrogen source. Using the serum-protein-agar method to test proterolysis of serum albumin in 20 strains of Candida albicans. Twenty-six strains of Candida albicans were phospholipase producers and the degree of phopholipase activity of experimental strains were $0.51{\sim}0.89$ measured by Pz-value. Twenty-eight strains of Candida albicans were adhersive to buccal epithelial cells and 15 strains were foung significantly active adherence. Fifteen strains of Candida albicans were correlated with proteinase activity and adherence to epithelial cells and concomitantly 20 strains of Candida albicans were also correlated with phospholipase activity and adherence. In conclusion our investigation provides evidence of a correlation between quantitative proteinase, phospholipase and adherence. An association of these parameters may be an important contributory factor for pathogenicity.

• Journal of Pharmaceutical Investigation
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• v.27 no.2
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• pp.133-137
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• 1997

Buccal absorption test of omeprazole in human was performed to determine the permeability of the drug molecule through oral mucous membrane. Oral mucosal adhesive tablets of omeprazole were prepared by compressing the omeprazole with a mixture of sodium alginate and hydroxypropylmethyl cellulose (HPMC) as bioadhesive polymers, magnesium oxide (MgO) as a stabilizer and sodium carboxymethyl cellulose (Na CMC) or cros-carmellose sodium (Ac-Di-Sol) as disintegrants. The bioadhesive force, stability in saliva and release characteristics of the tablets were evaluated. Omeprazole was absorbed about 23% in 15 min through human buccal mucous membrane. Furthermore, omeprazole was stable in saliva for more than 8 hrs when MgO was added to the tablet as the amount of 2.5 fold of omeprazole. The release rate of omeprazole was increased with increasing the amount of sodium alginate in the tablet. From these results, it is suggested that tablets composed of [omeprazole/HPMC/sodium alginate/MgO/Ac-Di-Sol and/or Na CMC (20/6/24/50/10) (mg/tablet)] are potential candidate for buccal drug delivery system.

• Archives of Craniofacial Surgery
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• v.22 no.6
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• pp.329-332
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• 2021

Although lipoma is a common benign tumor, it occurs relatively infrequently in the oral and maxillofacial areas, and only 31 cases of lipoma in the buccal fat pad have been reported. Herein, we present an extremely rare case of symmetric lipomas in both buccal fat pads. These masses were incidentally discovered during a facelift procedure in a 50-year-old woman with a 4-year history of tamoxifen use. during which she had gained 10 kg. The patient stated that cheek protrusion had developed concomitantly with weight gain and was exacerbated by an injection lipolysis procedure she had received 1 year previously. This case underscores the importance of paying careful attention to the patient's medication use and surgical history when evaluating suspected cases of lipoma, and sheds light on tamoxifen use and subcutaneous injections of phosphatidylcholine and deoxycholate as potential risk factors for lipoma development.

• The korean journal of orthodontics
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• v.52 no.5
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• pp.354-361
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• 2022

Objective: To analyze the overall treatment effects in terms of the amount of uprighting with changes in the three-dimensional positions of the mandibular posterior teeth after applying the biocreative reverse curve (BRC) system. Methods: Thirty-four patients (mean age, 20.5 ± 8.56 years) were treated using the BRC system (mean period, 8.17 ± 2.19 months). Cone-beam computed tomography was performed before treatment and after treatment with the BRC system. The three-dimensional movement of each tooth was analyzed in the coordinate system at points on the crown and root apex. A paired t-test was used to analyze the treatment effects of the BRC system. Results: The application of the BRC system spanning from the first premolar to the second molar resulted not only in buccal and distal uprighting, but also in increased buccal and distal tipping of the teeth. The premolars and the first molar were extruded, and the second molar was intruded. Conclusions: When the BRC system is applied, simultaneous distal and buccal uprighting of the premolars and molars can be achieved bilaterally using a temporary skeletal anchorage device without unnecessary movement of the anterior teeth.