• Restorative Dentistry and Endodontics
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• 제38권1호
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• pp.48-51
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• 2013

The autogenous tooth transplantation is an alternative treatment replacing a missing tooth when a suitable donor tooth is available. It is also a successful treatment option to save significant amount of time and cost comparing implants or conventional prosthetics. These cases, which required single tooth extraction due to deep caries and severe periodontal disease, could have good results by transplanting non-functional but sound donor tooth to the extraction site.

• Journal of Korean Dental Science
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• 제9권2호
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• pp.63-68
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• 2016

Pressure root resorption can be observed during the eruption of permanent dentition, especially of the maxillary canines (affecting lateral incisors) and mandibular third molars (affecting mandibular second molars). Since the cause of root resorption of the adjacent affected teeth is evident, treatment simply involves extraction of the impacted tooth. However, there have been few reports on the prognosis of the remaining resorbed tooth, as dentists often choose to extract them when damage due to root resorption is observed. We report a case involving a tooth that was severely resorbed due to pressure from an adjacent impacted tooth. After extraction of the impacted tooth, the remaining tooth retained vital pulp and survived as a functional tooth.

• The Journal of Advanced Prosthodontics
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• 제6권6호
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• pp.521-527
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• 2014

This case series evaluated the clinical efficacy of autogenous tooth bone graft material (AutoBT) in alveolar ridge preservation of an extraction socket. Thirteen patients who received extraction socket graft using AutoBT followed by delayed implant placements from Nov. 2008 to Aug. 2010 were evaluated. A total of fifteen implants were placed. The primary and secondary stability of the placed implants were an average of 58 ISQ and 77.9 ISQ, respectively. The average amount of crestal bone loss around the implant was 0.05 mm during an average of 22.5 months (from 12 to 34 months) of functional loading. Newly formed tissues were evident from the 3-month specimen. Within the limitations of this case, autogenous tooth bone graft material can be a favorable bone substitute for extraction socket graft due to its good bone remodeling and osteoconductivity.

• Journal of the Korean Association of Oral and Maxillofacial Surgeons
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• 제46권6호
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• pp.435-439
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• 2020

Extraction socket preservation (ESP) is widely performed after tooth extraction for future implant placement. For successful outcome of implants after extractions, clinicians should be acquainted with the principles and indications of ESP. It is recommended that ESP be actively implemented in cases of esthetic areas, severe bone defects, and delayed implant placement. Dental implant placement is recommended at least 4 months after ESP.

• 대한치과의사협회지
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• 제48권7호
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• pp.531-537
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• 2010

Intentional replantation is useful for failed cases of conventional dental treatment - including root canal treatment - to restore the tooth in question. Based on a recent study, it is relatively very successful; prognosis is good for a long period. On the other hand, a tooth that becomes an indication of intentional replantation is often severely weakened throughout several treatments. Moreover, with multi-rooted teeth, extracting without root fracture is difficult. Safe extraction that is free of coronal or root fracture is important, but little information is known as to a concrete, safe way of extraction. There are a few considerations for safe extraction. First, a tooth with orthodontic extrusion force is easier for extraction due to its increased mobility; it increases the amount of the periodontal ligament, which is essential for re-attachment. As a safe way of extraction, the use of physics forceps has been introduced recently; it minimizes damage to the gingiva and alveolar hone. This paper reports the good result of using atraumatic safe extraction via both orthodontic extrusion and physics forceps$^{(R)}$.

• Journal of Periodontal and Implant Science
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• 제37권3호
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• pp.647-653
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• 2007

Rapid crestal bone resorption following maxillary tooth loss is further accentuated in the posterior regions because of pneumatization and enlargement of the maxillary sinuses. A treatment rationale that allows preservation and augmentation of vertical available bone at the time of posterior maxil-lary tooth extraction may offer numerous therapeutic benefits which are more short courses of ther-apy and no needs of additional surgical augmentation. The present study comprised 3 patients who had 4 posterior maxillary teeth with no evident bone between the tooth apex and sinus floor, as estimated through preoperative radiographic analysis. Sinus floor augmentation at the time of tooth extraction was chosen for the ltreatment of these patients. After the tooth was carefully extracted, the empty alveolus was thoroughly debrided and a trephine approach was performed. Particulated autogenous bone was gently pushed beyond the empty alveolus to elevate the sinus membrane using an osteotome. The distance between bone crest and si-nus floor was radiographically estimated 4 months after the first procedure. Another procedure was then carried out to place the implants of 11 mm length without another augmentation procedure. All implant were clinically stable, with no sign of infection. The presented surgical procedure performed at the time of extraction of posterior maxillary teeth in close proximity to the sinus floor allowed placement of implants of proper length.

• 대한치과교정학회지
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• 제30권1호
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• pp.9-17
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• 2000

본 연구는 발치 후 인접치 이동을 위한 교정력 적용 시 적용 시기에 따른 치아이동 양상을 비교$\cdot$분석하기 위하여 시행되었다. 성견을 실험대상으로 상악 좌우 제 3절치를 3주 간격으로 각각 발거 하고, 양 견치 를 고정 원으로 제 2절치의 치체이동을 위한 장치를 장착하였다. 100 gm의 지속적인 힘을 내는 견인 스프링을 사용하여 발치 후 4주와 1주부터 좌우 제 2절치를 각각 12주간 동시에 견인하였다. 2주 간격으로 디지털 캘리퍼스를 이용하여 이동거리를 측정$\cdot$비교하고 실험에 사용된 좌우 제 2절치의 조직소견을 관찰하여 다음과 같은 결론을 얻었다. 1. 교정력 적용 후 처음 2주간에는 발치 후 4주에 견인한 치아가, 그 다음 2주간에는 발치 후 1주에 견인한 치아가 빠르게 이동하는 양상을 보였다. 2. 12주간의 실험기간 동안 견인 4주와 6주 사이에 가장 빠르게 이동하는 경향을, 이 후에는 이동 속도가 감소하는 양상을 보였다. 3. 실험기간 동안 이동한 전체 거리는 발치 후 4주에 비해 1주에 견인한 경우에서 크게 나타나는 경향을 보였다. 4. 발치 후 4주에 견인한 경우에 비하여 1주에 견인한 경우에서 유해한 조직소견이 나타나지 않았다. 이상의 결과는 발치 후 교정력 부여 시 조기 적용이 유리함을 시사하였다.

• 대한치과교정학회지
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• 제42권4호
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• pp.207-217
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• 2012

Objective: This study aimed to evaluate the effect of an intentionally created socket on bone remodeling with orthodontic tooth movement in rabbits. Methods: Eighteen male rabbits weighing 3.8 - 4.25 kg were used. An 8-mm deep and 2-mm wide socket was drilled in the bone 1 mm mesial to the right mandibular first premolar. The left first premolar was extracted to serve as an extraction socket. A traction force of 100 cN was applied to the right first premolar and left second premolar. Sections were obtained at the middle third of the moving tooth for both the drilled and extraction sockets and evaluated with hematoxylin and eosin staining and immunohistochemical analyses. The amount of tooth movement and tartrate-resistant acid phosphatase (TRAP)-positive cell count were compared between the 2 groups using the Mann-Whitney U test. Results: At week 2, the distance of tooth movement was significantly higher in the intentional socket group (p < 0.05) than in the extraction socket group. The number of TRAP-positive cells decreased in week 2 but increased in week 3 (p < 0.05). However, there were no significant differences between the groups. Furthermore, results of transforming growth factor (TGF)-${\beta}$ staining revealed no significant differences. Conclusions: The intentional socket group showed greater distance of tooth movement than did the extraction socket group at week 2. Osteoclast counts and results of immunohistochemical analyses suggested elevated bone remodeling in both the groups. Thus, osteotomy may be an effective modality for enhancing tooth movement in orthodontic treatment.

• Journal of Korean Dental Science
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• 제9권2호
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• pp.69-73
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• 2016

Clinicians must be able to recognize post-extraction complications and treat them in a timely manner; complications that may potentially be life-threatening require special attention. Although arteriovenous malformation (AVM) is a very rare disorder, it may induce life-threatening hemorrhage during surgical intervention in the pertinent site. The present article examines the diagnosis and treatment modalities of AVM based on the case of a patient who was diagnosed with AVM with continuous bleeding after tooth extraction and who was successfully treated.

• 대한치과교정학회지
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• 제22권2호
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• pp.413-426
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• 1992

저자는 좋은 교합관계를 유지하기 위한 치아와 기저골과의 관계를 분석하기 위해 정상교합자와 Angle써 I급 부정교합자(비발치군, 발치군)의 경석고 모형상에서 최대치아근원심폭경, 기저악궁폭경 및 기저악궁장경을 계측하고 최대치아근원심폭경 합, 최대치아근원심폭경 합에 대한 기저악궁폭경 비, 최대치아근원심폭경 합에 대한 기저악궁장경 비 및 최대치아근원심폭경 합에 대한 기저악궁폭경과 기저악궁장경합의 비를 산출하여 통계학적으로 분석한 결과 다음과 같은 결과를 얻었다. 1. 최대치아근원심폭경합에 대한 기저악궁폭경 비는 상악에서 정상교합군은 $46.9{\pm}2.6\%$, 비발치군은 $49.4{\pm}3.9\%$, 발치군은 $42.5{\pm}3.3\%$로 나타났으며, 하악에서 정상교합군은 $46.6{\pm}2.4\%$, 비발치군은 $47.5{\pm}4.0\%$, 발치군은 $42.6{\pm}2.6\%$로 나타났다. 2. 최대치아근원심폭경합에 대한 기저악궁장경 비는 상악에서 정상교합군은 $33.4{\pm}1.9\%$, 비발치군은 $33.9{\pm}1.8\%$, 발치군은 $28.7{\pm}2.5\%$로 타나났으며, 하악에사 정상교합군은 $34.4{\pm}4.3\%$, 비발치군은 $36.5{\pm}1.9\%$, 발치군은 $31.5{\pm}2.5\%$로 나타났다. 3. 최대치아근원심폭경합에 대한 기저악궁폭경과 기저악궁장경 합의 비는 상악에서 정상교합군은 $80.3{\pm}3.4\%$, 비발치군은 $83.3{\pm}4.8\%$, 발치군은 $71.2{\pm}4.3\%$로 나타났으며, 하악에서는 정상교합군은 $81.0{\pm}5.2\%$, 비발치군은 $84.0{\pm}5.4\%$, 발치군은 $74.1{\pm}4.1\%$로 나타났다. 4. 최대치아근원심폭경합에 대한 기저악궁폭경 비의 $95\%$ 신뢰구간은 상악에서 정상교합군은 $46.3-47.5\%$, 비발치군은 48.1-50.7, 발치군은 $41.7-43.3\%$로 나타났으며, 하악에서 정상교합군은 $46.1-47.2\%$, 비발치군은 $46.1-48.8\%$, 발치군은 $42.0-43.3\%$로 나타났다. 5. 최대치아근원심폭경합에 대한 기저악궁장경비의 $95\%$신뢰구간은 상악에서 정상교합군은 $32.9-33.8\%$, 비발치군은 $33.3-34.5\%$, 발치군은 $28.1-29.2\%$로 나타났으며, 하악에서 정상교합군은 $33.4-35.4\%$, 비발치군은 $35.8-37.2\%$, 발치군은 $30.9-32.1\%$로 나타났다. 6. 최대치아근원심폭경합에 대한 기저악궁폭경과 기저악궁장경 합의 비의 $95\%$신뢰구간은 상악에서 정상교합군은 $79.5-81.0\%$, 비발치군은 $81.6-84.9\%$, 발치군은 $70.1-72.2\%$로 나타났으며, 하악에서 정상교합군은 $79.8-82.2\%$, 비발치군은 $82.1-85.5\%$, 발치군은 $73.1-75.1\%$로 나타났다. 7. 최대치아근원심폭경합, 기저악궁폭경, 기저악궁장경, 최대치아근원심폭경 합에 대한 기저악궁폭경 비, 최대치아근원심폭경 합에 대한 기저악궁장경 비 및 최대치아근원심폭경 합에 대한 기저악궁폭경과 기저악궁장경 합의 비에서 발치군 남자의 기저악궁장경을 제외하고는 상하악간에 상관관계가 있는 것으로 나타났다.