• Journal of the korean academy of Pediatric Dentistry
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• v.8 no.1
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• pp.21-24
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• 1981

The author observed a case of ectopic erupted maxillary second premolars and impacted mandibular second premolars due to premature loss of the primary second molars. The treatments were done as follows: 1. In the maxilla, the teeth arrangement problem was corrected with removal of the ectopic erupted second premolars. 2. In the mandible, normal dentition was established with surgical removal of the left second premolar and removal of the permanent first molar in right side combined by orthodontic therapy.

• The Journal of the Korean dental association
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• v.41 no.7 s.410
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• pp.504-508
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• 2003

This report demonstrates a case of tooth autotransplantation into the oroantral fistula site after extraction. Oroantral fistula can be developed when maxillary molar or premolar is extracted in case the root of tooth closed to or inside maxillary sinus. In most of cases, this would heal spontaneously without any interventions. Sometimes, many procedures including flap closure would be used judging from perforating size and previous inflammation. Although fistula size of this case is not that large, closure with tooth autotransplanted has successfully accomplished. So this report will discuss about several clinical aspects.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2010.05a
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• pp.977-978
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• 2010

• The Journal of the Korean dental association
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• v.16 no.5 s.108
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• pp.395-399
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• 1978

The patient, 21 years and 3 months female, complained of protrusion of lower face. There was severe procumbency of upper & lower anterior teeth. Cephalometric analysis revealed that the anteroposterior jaw relationship was normal, but the teeth was foreward on their respective basal bones, so diagnosed as bimaxillary dental prognathism. The patient underwent extraction of four Ist premolar and was treated with multibanded & direct bonding system. After 14 months, She gained good interdigitation of buccal segment and attractive facial profile.

• The Journal of the Korean dental association
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• v.12 no.5
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• pp.357-359
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• 1974

1. The author experienced a case of internal resorption of mandibular right second premolar. 2. The patient was 19 years old male. 3. Clinically the tooth had pinkish discoloration and extra cusp at crown portion 4. On X-ray picture, the tooth showed an ovoid shaped resorption at middle third portion of root canal and a thickening of periodontal membrane.

• The korean journal of orthodontics
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• v.20 no.2
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• pp.217-226
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• 1990

The purposes of this study were to clarify the effect of tooth size and arch size upon the crowding. 175 upper casts were measured and following conclusions were made. 1. Tooth size, intermolar width, 2nd premolar width of crowded group were not significantly different from those of noncrowded groups. 2. Intercanine width, arch length of noncrowded group were significantly larger than crowded group. 3. Multiple regression equations were derived by using tooth size, arch perimeter, arch length, intermolar width.

• The Journal of the Korean dental association
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• v.10 no.7
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• pp.413-415
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• 1972

The author had a case report of right maxillary molar tooth root apex cyst involving maxillary sinus, which was misdiagnosed maxillary sinusitis or some cancer. Right maxillary 2nd premolar, 1st molar, & 2nd molar tooth involved root apex cyst was extracted and curetted.

• The Journal of the Korean dental association
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• v.38 no.8 s.375
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• pp.780-783
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• 2000

• Imaging Science in Dentistry
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• v.32 no.4
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• pp.227-230
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• 2002

The central odontogenic fibroma is a rare benign neoplasm, and considered to be derived from the mesenchymal tissue of dental origin. It is a poorly defined tumor of the jawbones which has only been infrequently reported in the literature. We report a histologically proven case of simple-type central odontogenic fibroma, which affected the left canine-premolar region of the maxilla in a 52-year-old woman.

• The Journal of the Korean dental association
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• v.16 no.11 s.114
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• pp.857-860
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• 1978

An instance of dentigerous cyst, 6×2.5×1.5cm, occurred in posterior region of the right mandible, originated from 3rd molar, involved the 2nd premolar, 1st and 2nd molar in a 38-year-old man was observed and surgical enucleation followed by careful excision of all cyst wall was successfully carried out, recovery and healing were rapid and uncomplicated.