• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제36권2호
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• pp.100-107
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• 2010

Introduction: A cyst is a closed pathologic sac containing fluid or semi-solid material in central region. The most common conventional treatment for a cyst is enucleation. It was reported that spontaneous bone healing could be accomplished without bone grafting. We are trying to evaluate bone reconstruction ability by analyzing panorama radiograph and computed tomography (CT) scan with retrograde studying after cyst enucleation. In this way we are estimating critical size defect for spontaneous healing without bone graft. Materials and Methods: The study comprised of 45 patients who were diagnosed as cysts and implemented enucleation treatment without bone graft. After radiograph photo taking ante and post surgery for 6, 12, 18, 24 months, the healing surface and volumetric changes were calculated. Results: 1. Spontaneous bone healing was accomplished clinically satisfying 12 months later after surgery. But analyzing CT scan, defect volume changes indicate 79.24% which imply incomplete bone healing of defect area. 2. Comparing volume changes of defect area of CT scan, there are statistical significance between under $5,000mm^{3}$ and over $5,000mm^{3}$. The defect volume of $5,000mm^{3}$ shows $2.79{\times}1.91$cm in panoramic view. Conclusion: Bone defects, which are determined by a healed section using a panoramic view, compared to CT scans which do not show up. Also we can estimate the critical size of defects for complete healing.

• 대한관절경학회지
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• 제1권1호
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• pp.112-115
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• 1997

저자들이 전방십자인대 파열과 함께 전방 불안정성을 보인 2례를 보존적으로 치료하여 좋은 임상적 결과를 얻은 바를 고려할 때, 급성기에 전방십자인대가 파열된 경우에도 전방십자인대를 싸고 있는 활액막이 파열되어 없어지지 않고 비교적 연속성이 잘 유지된 경우에는 보존적으로 치료함으로써 좋은 결과를 기대할 수 있을 것으로 사료되며 아울러 십자인대가 손상받았을 때 스스로 복원 능력이 있는 지에 대하여 새로운 연구가 필요하리라 사료된다.

• Journal of Periodontal and Implant Science
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• 제40권4호
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• pp.180-187
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• 2010

Purpose: This study evaluated the spontaneous healing capacity of surgically produced cranial defects in rabbits with different healing periods in order to determine the critical size defect (CSD) of the rabbit cranium. Methods: Thirty-two New Zealand white rabbits were used in this study. Defects of three sizes (6, 8, and 11 mm) were created in each of 16 randomly selected rabbits, and 15-mm defects were created individually in another 16 rabbits. The defects were analyzed using radiography, histologic analysis, and histometric analysis after the animal was sacrificed at 2, 4, 8, or 12 weeks postoperatively. Four samples were analyzed for each size of defect and each healing period. Results: The radiographic findings indicated that defect filling gradually increased over time and that smaller defects were covered with a greater amount of radiopaque substance. Bony islands were observed at 8 weeks at the center of the defect in both histologic sections and radiographs. Histometrical values show that it was impossible to determine the precise CSD of the rabbit cranium. However, the innate healing capacity that originates from the defect margin was found to be constant regardless of the defect size. Conclusions: The results obtained for the spontaneous healing capacity of rabbit cranial defects over time and the underlying factors may provide useful guidelines for the development of a rabbit cranial model for in vivo investigations of new bone materials.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제47권6호
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• pp.465-470
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• 2021

Few cases of spontaneous bone regeneration after extensive resection of the jaw bone have been reported, but it is more common in young adults or children. In this case, we report spontaneous bone healing in a 73-year-old female patient. On radiological examination, necrotic regions were seen in the right mandible. She was diagnosed with medication-related osteonecrosis of the jaw due to previous bisphosphonate use. After segmental resection, stabilization achieved using a reconstruction plate. The periosteum was preserved during the procedure. Twelve months later, panoramic radiography was taken and bone formation was seen both horizontally and vertically around the plate. If the periosteum is preserved and stabilization is achieved after resection in benign lesions, the bone may regenerate spontaneously regardless of age. Therefore, instead of simultaneous autogenous bone application, such patients may be followed to determine whether spontaneous bone healing will occur. This should improve patient comfort and reduce surgical cost.

• Restorative Dentistry and Endodontics
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• 제37권3호
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• pp.180-184
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• 2012

Traumatic injuries of the face often involve root fractures especially in anterior teeth. The prognosis and the treatment of the root fracture depend on the extent of the fracture line, general health and patient compliance. This case report outlines a new conservative trial treatment modality to stabilize the maxillary central incisors with horizontal root fracture on the cervical to middle third by fabricating canine guidance to remove loading on the traumatized maxillary central incisors during eccentric movements and thus inducing spontaneous healing of the fractured line between the fragments. Radiographs after thirty months showed adequate healing with no signs of pathological changes including root resorption, ankylosis or displacement. Long term follow-up revealed that vitality, stability and aesthetics were maintained and the patient was satisfied with the outcome.

• Journal of Trauma and Injury
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• 제28권1호
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• pp.21-26
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• 2015

Complete radial tears of the lateral meniscus are relatively rare. Once torn, the injury can be debilitating due to disruption of the circumferential fibers of the meniscus. We experienced a case of a lateral meniscus with a complete radial tear at the midbody, where the two torn ends were displaced more than 1 cm and could not be approximated during arthroscopy. Thirteen months after surgery, follow-up MRI and second-look arthroscopic findings showed that the complete radial tear has healed spontaneously. However, twenty nine months after the second-look arthroscopy, the patient complained of severe knee pain during exercise. On follow-up MRI, increased sclerosis and newly developed bone marrow edema were observed in the lateral femoral condyle, compared with previous MR images. Finally, we performed meniscal allograft transplantation due to the defective properties of the completely healed lateral meniscus.

• Restorative Dentistry and Endodontics
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• 제37권2호
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• pp.123-126
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• 2012

기계적 또는 세균 부산물에 의한 만성자극이 치아에 지속적으로 가해질 경우 치근단 부위로 치수 신경 섬유의 sprouting이 증가하고 neuropeptide, cytokine의 분비가 촉진되어 파골세포의 활성도가 증가하게 된다. 이로 인해 생활치에서 치근단 병소가 발생가능하며, 이러한 기전을 이해하고 자극원을 제거해주는 보존적 치료만으로도 자연치유를 기대할 수 있을 것이다.

• 대한두개안면성형외과학회지
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• 제14권1호
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• pp.58-60
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• 2013

Keloids result from excessive production of fibrous tissue during an abnormal wound healing process. Keloids can occur after trauma, and trauma can range from laceration, piercing, bites, surgery, and burns, to other skin conditions such as acne or folliculitis. We present a case of 68-year-old man, which was characterized with a relatively firm, non-tender, mild pigmented mass in his right earlobe. We performed a local excision, together with microscopic analysis. The mass was eventually diagnosed as a keloid scar in the right earlobe. Postoperative adjuvant pressure therapy using magnets was adopted and the postoperative follow-up was maintained without any recurrence. Auricular keloids should be considered in the differential diagnosis regardless of the cause or the age of patient.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제48권6호
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• pp.382-385
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• 2022

Congenital epulis (CE) is an extremely rare benign tumor of the gingiva that is found on the alveolar ridge of newborns, and the main treatment option is simple excision. Postoperative prognosis is very good, and spontaneous regression may occur despite incomplete excision. This report presented a rare case of CE and its healing process after surgery under local anesthesia. The treatment plan was decided upon through consultation between a medical team and the patient's family, with surgical excision for the main lesion, which benefitted from surgery, and follow-up for a very small-sized lesion, which was thought to be appropriate for a newborn. No recurrence was found after its removal, and favorable healing was observed.

• 보건교육건강증진학회지
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• 제16권1호
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• pp.187-201
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• 1999

A purpose of this study is to provide Rousseau's health theory and health education in 『Emil』. Though Rousseau was not so much a doctor as a philosopher, he was good at health care and health education. After he had thought over healthy children for 20 years, he had written 『Emil』 for 3 years. His health theory was included in the book. He was aware of the importance of mother's milk, clothes, and physical health. Especially, he told mothers to rear a child at the breast. He understood thoroughly the demerits of medicines, and made no account of doctors and medicines. But on the other hand, He emphasized natural healing power in human body. He thought that one oneself was a physician. He thought highly of inner healing. He thought that only hygiene of medicine was useful to mankind. He prescribed that hygiene was a kind of ethics education. Therefore, his hygiene was associated with mental health and moral evaluation. Because many years have passed, today we can not accept all his assertions. But we need to stress preventive medicines, spontaneous healing, and self-care in health education.