頭蓋底의 成長에 關한 累年的 硏究

鄭圭林 대한치과교정학회 1983 대한치과교정학회지 Vol.13 No.1

Serial cephalometric roentgenorgams of 40 Korean children (25 males, 15 females) were employed to study the growth changes of the cranial bases. As a result of this study, the following conclusions can be made: 1. The mean size of the cranial bases in males was lager than th females, especially at the age of 13. 2. In both sexes, growth of the cranial bases was seen from 6 to 13 years of age and the growth of the posterior cranial base (S-Ba) was larger than the anterior cranial base(S-N) 3. Variation in the changes of the saddle angle (Ba-S-N) was exhibited with males showing a marked tendency toward a decrease in saddle angle size.

심미적 교정

정규림 대한치과의사협회 1991 대한치과의사협회지 Vol.29 No.8

Anterior j hook headgear를 이용한 상악골 성장억제에 관한 연구

정규림,강장윤 대한치과교정학회 2000 대한치과교정학회지 Vol.30 No.4

이 연구는 악외견인장치의 하나인 Anterior J hook headgear의 상악골 성장 억제효과를 관찰하기 위하여 혼합 치열기의 골격성 Ⅱ급 부정교합 아동 20명을 대상으로 얻어진 측모두부 방사선규격사진이 분석되었다 구강내 교정장치로서는 horseshoe appliance가 사용되었으며, J hook의 견인은 상악견치 중앙부에서 후상방으로 이루워졌다. Anterior J hook headgear의 적용기간은 평균 14개월이었으며 계수형 분석법에 의해 적용전후 측모두부 방사선규격사진이 분석된 바, 다음과 같은 결과를 얻었다. 1.상악골의 전하방성장이 억제되었다. 2.상악골의 회전효과는 일어나지 않았다. 3.상악치열은 전체적으로 후방이동하였다. 4.상악의 치아치조부 성장억제변화는 구치부보다는 전치부에서 더 뚜렷하였다. 5.하악평면각(SN-MP)은 치료후 변화가 없었으며 하악골은 정상적인 성장을 나타냈다. 6.전안면고경과 후안면고경 사이의 비율은 유의한 변화가 없었다. This study was aimed to observe the effect of Anterior J hook headgear on the craniofacial structures in mixed dentition with Class II malocclusion. The material cephalograms of 20 children treated by Anterior J hook headgear were traced, digitized and statistically analyzed. The results were as follows : 1.Forward growth of maxilla was inhibited. 2.Rotational effect of maxilla was not observed. 3.There was distal movement of maxillary dentition. 4.Maxillary dentoalveolar growth changes were more effective in anterior portion than posterior portion. 5.Mandible maintained a normal growth and mandibular plane angle was maintained during treatment period. 6.The ratio of anterior facial height to posterior facial height was almostly not changed.

유성견 급속정중이개시 정중구개봉합부위의 조직학적 변화에 대한 연구

이두희,정규림 대한치과교정학회 1996 대한치과교정학회지 Vol.26 No.2

정중구개봉합의 급속확장은 상악골의 악궁의 폭을 증가시키고, 전방이동을 용이하게하므로 전후방적인 악골의 부조화나 상악치열궁 협착 등을 치료하는데 널리 사용되고 있다. 이 연구는 정중구개봉합의 급속이개시 봉합부위에서 나타나는 골개조 과정 및 교원섬유의 변화를 관찰하고자 시행되었다. 생후 6-8개월된 유성견 4마리를 실험동물로 사용하여 인상을 채득한 후 주조된 금속정중이개장치에 Hyrax screw를 납착하여 장착시키고 1회에 90°씩, 1일 2회전시켜 10일간 지속하였다. X-ray상에서 봉합의 이개를 확인한 후 이개직후, 15일, 30일 그리고 60일간의 보정기간을 거쳐 희생시키고 정중구개봉합부를 절취하여 봉합부위의 변화를 광학 및 주사전자현미경으로 관찰하여 다음과 같은 결과를 얻었다. 1. 정중구개봉합 확장 직후 양 봉합골단의 일부에서는 신생골 형성이 관찰되었으며, 양 골단 사이의 교원 섬유속이 중앙에서 늘어나 골간거리가 확장되었다. 2. 정중구개봉합 확장 15일 후, 봉합면에서는 많은 파골세포를 가진 골흡수면이 증가되었고 양 골단 사이에서는 교원섬유속의 주행방향이 불규칙하고, 조섬유세포 수가 줄어든 반면 많은 염증세포가 침윤되어 있었다. 3. 정중구개 함 확장 30일 후 양 봉합골단에서 많은 조골세포를 가진 신생골이 선장하여 해면골이 형성되었으며, 양골단 사이에서는 교원섬유속이 풍부해지고 조섬유세포 수가 증가되었다. 4. 정중구개봉합 확장 60일 후, 양봉합골단은 해면골이 치밀골로 대치되어 골간거리가 좁아졌지만 계속적인 골개조현상이 관찰괴었고, 교원섬유속이 재생된 봉합면에 매입되었으며, 연결 중앙부에서는 서로 교차되고 있는 양상이 관찰되었다. 이상의 결과에 의하면 급속정중이개시 정중구개봉합 부위의 유주성 세포의 침윤상태가 유도되는 염증반응이 일어난 후 골개조현상이 일어났으며, 골개조 현상은 급속확장 2개월 후에도 계속 진행되고 있었다. Repid maxillary expansion is widely used for the correction of anteroposterior discrepancies, constriction of the maxillary arch, etc. This experiment was undertaken to examine the serial changes in the osteogenesis as well as the collagen fiber bundies in the intermaxillary suture during the rapid maxillary expansion treatment. Four young female dogs aged 6 to 8 months old and not showing menarche yet were used for the experiment. The maxillary impression of dogs were taken, expansion device cast and Hyrax screw soldered at the midline in the 1st premolar area. RME device was delivered to the dogs and the activation of 0.25mm per quarter-turn was done 2 times per day for 10 days until 5 mm separtion was made Separation of the maxilla was confirmed by X-ray. The animals were sacrificed on 0, 15, 30, 60 days from the finish of maxillary separation and preparations for light microscopy and surface electron microscopy were made. The sutures were cut into frontal serial sections for examination of the histological reactions. The following results were obtained and the conclusions made. 1, The edges of the two palatal plates bordering the midpalatal suture which at the beginning of the retention period were mainly composed of compact bone, underwent extensive resorption followed by new bone formation and gradually became spongy bone rich in bone marrow which in the 60 day retention animal became the compact bone with short intermaxillary suture space. During this transformation, newly formed trabecular bone tissues were added to the original margin. 2. Throughout the expansion period, the collagen fibers underwent successive changes such as stretching loss of polarity, and finally fibrillogenesis. Towards the end of the expansion procedure, sharpey's fiber formation in newly formed bones were observed. 3. Bony spicules were found in the initial stage of retention on occlusal topographic X-rays, which later were confirmed to have ossified. 4. Judging from the histological changes occuring during the experimental expansion, excessive expansion will cause an excessive bleeding, and retard the remodeling of intermaxillary suture. According to the above results, the bone remodeling after rapid maxillary expansion was preceded by the migration of migratory cells into the intermaxillary suture area. The bone remodeling phenomena were on-going during the 2 months retention sample.

수직적 분류에 의한 골격성 Ⅲ급 부정교합자의 측모 특성에 관한 연구

이현경,박영국,정규림 대한치과교정학회 1992 대한치과교정학회지 Vol.22 No.1

This study was aimed to investigate the characteristics & the causative areas of the adult skeletal class Ⅲ malocclusions with different facial divergency. The lateral cephalograms of 80 subjects with skeletal class Ⅲ malocclusion from 17 to 29 years of age were classified into 3 groups according to SN-MP angle; hypodivergent group(21.65 ± 3.52。), neutrodivergent group(30.50 ± 2.29。) and hyperdivergent group(40.02 ± 3.98。). The data were gathered by digitizing of the traced cephalograms and were statistically analyzed. The results were as follows: 1. The anterior cranial base of the hyperdivergent group was shortest & tipped upwardly to the FH plane. 2. The maxilla of hyperdivergent group was shortest anteroposteriorly and positioned posteriorly to the anterior cranial base. 3. The degree of the mandibular prognathism in hyperdivergent group was less than the hypodivergent group. The hyperdivergent group showed the downward & backward rotated mandible. 4. The mandibular ramus & body was short & slender in the hyperdivergent group and the gonial angle was greatest in the hyperdivergent group. 5. The temporomandibular joint was positioned more superiorly to the anterior cranial base in the hyperdivergent group. 6. The cranial base, palatal plane, occlusal plane and mandibular plane were diverged in the hyperdivergent group. And this group had a great anterior total facial height, especially anterior lower facial height. 7. The craniofacial characteristics of skeletal class Ⅲ malocclusion were critical in the vertical structure than the horizontal.

63. Modified Edgewise Technique이란 어떤 것인가?

정규림 대한치과의사협회 1990 대한치과의사협회지 Vol.28 No.3

제1소구치 발치 증례와 비발치 증례에서 하악 제3대구치 맹출에 관한 연구

정규림,박영국,이정민 대한치과교정학회 1993 대한치과교정학회지 Vol.23 No.4

It is the aim of this study to determine the impacts of radicular development of lower third molars on its eruption/impaction and to grope the prediction for eruption and/or impaction in advance. Three hundred and thirty cases of orthopantomogram were employed and classified as mesial root-dominant group, distal root-dominant group and identical group according to the radicular development of lower third molars. This presentation has carried out the incipient mesial inclination, radicular development, impaction/eruption rate and changes of mesial inclination of the very teeth. Consequently the following summary and conclusions were drawn; Radicular development dominated mesial root than the distal and dominant mesial root invited higher potentialities for normal eruption. The mesial or horizontal impactions were detected on the distal root-dominant group. This analysis han been suggested the potential eruption/impaction of lower third molars were dependent upon the radicular development and the incipient mesial inclination.

Elastic Open Activator를 이용한 Ⅱ급 부정 교합의 치료효과

정규림,박영국,이현경 대한치과교정학회 1995 대한치과교정학회지 Vol.25 No.5

Elastic Open Activator(E.O.A)는 myodynamic activator의 일종으로서 장치의 아크릴 부위의 대폭적인 크기 감소로 환자가 거부감 없이 장시간 착용할 수 있는 장점을 가지며, 구강내에서 매우 느슨하게 장착되므로써 보다 적극적인 근기능 자극 효과를 나타내고, 구강 내외의 제 기능시 발휘되는 생리적인 힘을 효율적으로 치조골 및 악관절부에 전달시킨다. 특히 기능모체(functional matrix)를 효과적으로 차단하는 동시에 능동적으로 자극함으로써 많은 부정교함 증례에서 비발치에 의한 교정치료의 성공률을 높이는 것으로 사료된다. 이 연구는 혼합치열기 및 초기 영구치열기의 Ⅱ급 부정교합 환자에게 사용된 E.O.A의 치료효과를 구명하기 위하여 시행되었으며 경희의료원 교정과에 내원하여 Ⅱ급 1류 및 2류 부정교합으로 진단되었던 각각 9명과 5명의 치료 전후 cephalogram 및 석고모형을 비교분석한 후 결과를 평가하여 다음과 같은 결론을 얻었다. 1. 상악골은 두 군 모두에서 정상적인 성장 양태를 유지하였다. 2. 하악골은 두 군 모두에서 크게 전하방 성장되었다. 3. 상악 전치는 Ⅱ급 1류 부정교합자에서는 설측, Ⅱ급 2류 부정교합자에서는 순측 경사되었고 두 군 모두에서 상하악 전치부 치조골 수직 성장이 억제되었다. 4. 하악 전치는 두 군 모두에서 약간 순측 경사되었다. 5. 두 군 모두에서 상, 하악 치궁의 확장이 일어났으며 Ⅱ급 2류 부정교합자에서 가용 공극의 길이가 증가되었다. The elastic open activator is one of the modified myodynamic activator. The reduced size of the appliance mass motivates the patients' comfort and longer time of wearing. Its peculiarities in loose fitting and the lack of appliance stabilization in the mouth draws the tongue and the surrounding functional matrices on close interaction with the appliance, consigns the physiologic exertion to target structures, and eventually makes it feasible to the inland of non-extraction treatment. In the context of the sagittal malocclusion, the orthodontic trench is dependent upon the growth of basal structure aimed, therefore, it is contemplated to grabble the effects of Elastic Open Activator upon the class Ⅱ malocclusion of growing child retrospectively. The cephalometric headfilms and study models of nine class Ⅱ malocclusion of growing child retrospectively. The cephalometric headfilms and study models of class Ⅱ division 1 and five division 2 patients were evaluated and analyzed, and the following observations were drawn ; 1. The maxilla maintained a normal growth pattern in both groups. 2. The mandible grew anteroinferiorly in both groups. 3. The upper incisors tipped ligually in Class Ⅱ division 1 and tipped labially in Class Ⅱ division 2 and anterior vertical alveolar growth was interrupted in both groups. 4. The lower incisors tipped labially. 5. There was an arch expansion in both groups and increase of available space in Class Ⅱ division 2

調和된 齒列의 黃金分割에 關한 硏究

류성희,정규림 대한치과교정학회 1987 대한치과교정학회지 Vol.17 No.1

The purpose of this study was to investigate the fittness of Golden relation items was advocated by Ricketts whether or not it is applicable to the young adult Korean dentitions and also to evaluate the several new Golden relation items conducted by the author. The material was consisted of 81 dental casts (34 male, 47 female) with ideal occlusion, which never undergone orthodontic, prosthodontic procedures. Measurements were made on the arch dimensions using sliding caliper (Mitutoyo. Co) and data were computerized and analyzed. The findings of this study were as follows, 1. The Golden proportion advocated by Ricketts dose not seem to directly applicable to the Korean, normal dentition, however, the modification from the Ricketts’original shows the Golden proportion as follow: A first series of progressive Golden relations was found on the Golden ratio among the lower central incisors width, the inter mesionincisal width of the upper lateral incisors, and the upper first premolars width. A second series was found on the Golden ratio among the lower lateral incisors width, lower inter canine tips width and theupper first molar distal cusp tips width. A third series was found on the Golden ratio between the inter distal aspect width of e lower canine and the mesial cusp tips width of the lower second molars or inter cusp tips width of upper second premolars. 2. In addition to Ricketts’original, 4 new Golden proportions were found in young adult Korean dentition, these are as follows; The tips of lower canine width had Golden relation with the width of the upper first pre-molar buccal cusp tips or the width of the lower first molar central fossae. The distal aspect of the lower first premolars had Golden relation with the buccal surface widths of the lower or upper second molars. The width of upper lateral incisors had Golden relation with the upper second molar height. The width of the lower canine tips had Golden relation with the lower second molar height.

CLASS Ⅲ의 개괄적 치료

정규림 의치학사 1992 치과임상 Vol.12 No.12