Effects of different periodontal splints combined with orthodontic treatment on facial aesthetics in patients with sector displacement of periodontitis teeth / 中国医师杂志

Objective:To study the facial aesthetic effect of different periodontal splints combined with orthodontic treatment for patients with sector displacement of periodontitis teeth.Methods:A total of 186 patients with sector displacement of periodontitis teeth admitted to Hunan Second People′s Hospital from April 2018 to April 2020 were prospectively selected as the research objects. 186 patients were divided into observation group and control group by random number table method, with 93 cases in each group. Both groups were treated with orthodontic correction. The observation group was treated with orthodontic combined with super fiberglass periodontal splint, while the control group was treated with orthodontic combined with conventional periodontal splint. The treatment effect, serum inflammatory factors [tumor necrosis factor-α (TNF-α), C-reactive protein (CRP), interleukin-6 (IL-6) ], periodontal pocket depth, bleeding index and plaque index before and after treatment were compared between the two groups, and the satisfaction of the two groups was compared.Results:At half year and 1 year after treatment, the effective rate of the observation group was 91.40%(85/93) and 100%(93/93), which were significantly better than those of the control group [84.95%(79/93), 95.70%(89/93), all P<0.05]. The levels of serum TNF-α, CRP and IL-6 in the two groups at half year and 1 year after treatment were significantly lower than those before treatment (all P<0.05); the levels of serum TNF-α, CRP and IL-6 in the observation group was significantly lower than the control group, with statistically significant difference (all P<0.05). The periodontal pocket depth, bleeding index and plaque index of the two groups after treatment were also significantly lower than those before treatment (all P<0.05); the periodontal pocket depth, bleeding index and plaque index of the observation group was significantly lower than the control group, with statistically significant difference (all P<0.05). At half year and 1 year after treatment, the patients′ satisfaction in the observation group reached 91.40%(85/93) and 94.62%(88/93), respectively, which was also significantly better than that in the control group [81.72%(76/93), 89.25%(83/93), all P<0.05]. Conclusions:Compared with the conventional periodontal splint, the combination of super fiberglass periodontal splint can significantly improve the treatment effect and patient′s satisfaction.

Interrelación Entre Ortodoncia y Periodoncia en Periodonto Reducido. Estabilidad Periodontal Tras 6 Años de Seguimiento

RESUMEN: En pacientes con periodontitis, la migración dentaria patológica es una consecuencia de la pérdida de soporte periodontal. El siguiente reporte de caso aborda el tratamiento periodontal y ortodóncico de una paciente con periodontitis y migración dentaria patológica. El protocolo utilizado fue el protocolo de la Unidad de Ortodoncia y Periodoncia de la Facultad de Odontología de la Universidad de Chile. La estabilidad periodontal se ha mantenido por al menos 6 años luego de finalizado el tratamiento de ortodoncia logran-do funcionalidad y estética de la dentición natural.

ABSTRACT: In patients with periodontitis, pathologic tooth migration is a consequence of loss of periodontal support. The following case report addresses the periodontal and orthodontic treatment of a patient with periodontitis and pathologic tooth migration. The protocol used was the protocol of the Orthodontics and Periodontics Unit of the Faculty of Dentistry of the University of Chile. The periodontal stability has been maintained for at least 6 years after the end of orthodontic treatment, achieving functionality and aesthetics of the natural dentition.

Intrusion of the extruded maxillary central incisor using skeletal anchorage system and unilateral segmental intrusion arch

Patients who have a moderate periodontitis with pathologic tooth migration of maxillary incisors, it is necessary not only periodontal treatment for reduce periodontal inflammation, but also orthodontic treatment to teeth repositioning. For orthodontic treatment, it is necessary to apply less force and careful considerations of the center of resistance of the tooth and optimal force of tooth movement. At this time, the segmental arch applied only to the target teeth, is more effective and predictable, because applied force and direction can be controlled. In addition, to design the orthodontic appliance that can prevent the unwanted tooth movement that used as an anchorage is important. In recent years, various types of skeletal anchorage system have been used for preventing loss of the anchorage. We reported the patient who had extruded maxillary central incisor due to pathologic tooth migration, treated by a successful periodontal-orthodontic multidisciplinary treatment using an orthodontic appliance designed to apply less traumatic force and reduce an anchorage loss.

Influence of bone loss and inclination of incisor on periradicular stresses due to simulated bite force / Influência da perda óssea e da inclinação do incisivo na distribuição de tensões perirradiculares decorrentes da simulação de forças oclusais

Introduction: Adults with sequelae of periodontal disease tend to have bone loss, with consequent flaring of the maxillary incisors. Objective: The influence of bone loss and the inclination of the maxillary incisor in the distribution of stresses due to simulated bite forces was studied. Material and method: Models in epoxy resin were made in three conditions (without bone loss and with bone loss of 5mm and 8mm). Increases in the labial inclination of the maxillary incisor of 10° and 20° were obtained with a beveled metallic block. Loads of 100N were applied five times in each condition using a universal test machine. The models were observed and filmed with a circular polariscope. Orders of isochromatic fringes (stresses) on the labial, lingual, and apex surfaces were recorded. The agreement of the data was evaluated using the weighted kappa test, and the results were 0.89 and 0.82 for intra- and inter-examiners, respectively. Result: The results of the Kruskal-Wallis and SNK tests indicated higher stresses (2.0) with increased labial inclination in the labial surface; higher stresses (2.67) with increased bone loss; higher greater stresses with the association of bone loss and labial-inclination (3.6); and the highest stresses tended to concentrate on the labial surfaces, except in cases of normal inclination and without bone loss (0.45). Conclusion: It was concluded that increases in both the labial inclination of the maxillary incisors and bone loss increase periradicular stresses, and the combination of these factors further increases the stresses due to bite forces, with the highest concentration on the labial side.

Introdução: Adultos com sequelas de doenças periodontais tendem a apresentar perda óssea, com consequente vestibularização dos incisivos superiores. Objetivo: A influência da perda óssea e da inclinação do incisivo superior na distribuição de tensões devido a forças mastigatórias simuladas foram avaliadas nesse estudo. Material e método: Modelos em resina epóxi foram confeccionados em três condições (sem perda óssea e com perda óssea de 5mm e 8mm). Aumentos na inclinação vestibular do incisivo superior de 10° e 20° foram obtidos com um bloco metálico chanfrado. Cargas de 100N foram aplicadas cinco vezes em cada condição usando uma máquina de ensaio universal. Os modelos foram observados e filmados com um polariscópio circular. Ordens de franjas isocromáticas (tensões) nas faces vestibular, lingual e apical foram registradas. A concordância dos dados foi avaliada pelo teste kappa ponderado e os resultados foram 0,89 e 0,82 para intra e interexaminadores, respectivamente. Resultado: Os resultados dos testes de Kruskal-Wallis e SNK indicaram maiores tensões (2,0) com aumento da inclinação vestibular na face vestibular; maiores tensões (2,67) com aumento da perda óssea; maior tensão com a associação de perda óssea e inclinação vestibular (3,6); e as maiores tensões tenderam a concentrar-se na face vestibular, exceto em casos de inclinação normal e sem perda óssea (0,45). Conclusão: Concluiu-se que aumentos tanto da inclinação vestibular dos incisivos superiores quanto da perda óssea aumentam as tensões perirradiculares, e a combinação desses fatores aumenta ainda mais as tensões devido às forças mastigatórias, com a maior concentração na face vestibular.

Therapeutic effect of orthodontic intrusion combined with periodontal regenerative surgery in the treatment of pathologic migration of upper incisors / 上海交通大学学报（医学版）

Objective: To evaluate the effectiveness of orthodontic intrusion combined with periodontal regenerative surgery in the treatment of pathologic migration of upper incisors. Methods: Nine patients with chronic periodontitis who had pathologic migration of upper incisors were selected. After periodontal initial therapy, periodontal regenerative surgery was performed on the vertical defect around 11 displaced teeth, and then orthodontic intrusion was performed 3 months after the surgery. The differences between baseline (T0) and end of orthodontic treatment (T1) of the periodontal clinical parameters and bone defects were analyzed. Results: For all patients, the periodontal clinical parameters and bone defects were significantly improved. The average pocket probing depth reduction was 2.81 mm, the average attachment gain was 3.38 mm, the average gingival recession was reduced by 0.56 mm, and the width of keratinized gingival tissue was not decreased. As measured on the X-ray, the depth and width of the vertical bone defect were reduced by an average of 2.20 mm and 0.55 mm, respectively. Conclusion: Orthodontic intrusion combined with periodontal regenerative surgery can effectively treat pathologic migration of the upper incisors with vertical bone defects, and obtain good periodontal soft and hard tissue regeneration.

Therapeutic effect of orthodontic intrusion combined with periodontal regenerative surgery in the treatment of pathologic migration of upper incisors / 上海交通大学学报（医学版）

Objective · To evaluate the effectiveness of orthodontic intrusion combined with periodontal regenerative surgery in the treatment of pathologic migration of upper incisors.Methods· Nine patients with chronic periodontitis who had pathologic migration of upper incisors were selected.After periodontal initial therapy,periodontal regenerative surgery was performed on the vertical defect around 11 displaced teeth,and then orthodontic intrusion was performed 3 months after the surgery.The differences between baseline (T0) and end of orthodontic treatment (T1) of the periodontal clinical parameters and bone defects were analyzed.Results · For all patients,the periodontal clinical parameters and bone defects were significantly improved.The average pocket probing depth reduction was 2.81 mm,the average attachment gain was 3.38 mm,the average gingival recession was reduced by 0.56 mm,and the width of keratinized gingival tissue was not decreased.As measured on the X-ray,the depth and width of the vertical bone defect were reduced by an average of 2.20 mm and 0.55 mm,respectively.Conclusion · Orthodontic intrusion combined with periodontal regenerative surgery can effectively treat pathologic migration of the upper incisors with vertical bone defects,and obtain good periodontal soft and hard tissue regeneration.

Transmigrant impacted mandibular canine: a case report / Transmigração de canino impactado em mandíbula: relato de caso

Transmigration of canines across mandibular midline is a rare and elusive phenomenon described in the dental literature. Etiology of this phenomenon is obscure, but in some cases supernumerary teeth may be one of the causes. Surgical extraction is indicated due to pathologic lesions, infection, trauma to the adjacent teeth, pain, ectopic eruption and interference with prosthesis they may cause. The aim of this paper is to describe the treatment of a transmigrant impacted mandibular canine near the inferior border and to review the literature about its incidence, prevalence and treatment options. Vestibular access in the anterior mandible was performed followed by osteotomy and odontosection, for tooth removal. Canine impaction is more prevalent in the maxilla than in the mandible, but canine transmigration is more frequent in the mandible. Females seem to be more affected than males, with the left side being more prevalent than the right. Although the literature is controversial about treatment protocol for transmigrant teeth several authors indicate its extraction to prevent lesions that are associated with impacted teeth, specially when orthodontic traction is contraindicated due to the position of those dental units. (AU)

Transmigração de caninos através da linha mediana mandibular é um fenômeno raro descrito na literatura odontológica. A etiologia deste fenômeno é obscura, mas em alguns casos os dentes supranumerários podem ser uma das possíveis causas. A extração cirúrgica é indicada devido a lesões patológicas, infecção, trauma aos dentes adjacentes, dor, erupção ectópica e possível interferência ao uso de próteses que possam causar. O objetivo deste trabalho é descrever o tratamento de um canino mandibular transmigrado perto da borda inferior e analisar a literatura sobre sua incidência, prevalência e opções trapêuticas. Acesso vestibular na mandíbula anterior foi realizado seguido de osteotomia e odontosecção, para remoção do dente. A impactação canina é mais prevalente na maxila do que na mandíbula, mas a transmigração canina é mais freqüente na mandíbula. Mulheres parecem ser mais afetadas do que os homens, com o lado esquerdo sendo mais prevalente do que o direito. Embora a literatura seja controversa quanto ao protocolo de tratamento para dentes transmigrados, vários autores indicam sua extração para prevenir lesões associadas aos dentes impactados, especialmente quando o tracionamento ortodôntica é contra-indicado devido à posição dessas unidades dentárias.(AU)

A Ortodontia como adjunto no tratamento periodontal / The orthodontic movementation as an adjunctive to periodontal treatment

O tratamento ortodôntico em adultos com o periodonto reduzido tem exigido uma cooperação interdisciplinar, objetivando transformar pacientes que apresentam espaços interdentais esteticamente não atraentes, extrusões, ou ainda migração dentária patológica, em pessoas com dentições esteticamente melhoradas e função mastigatória restabelecida. O tratamento do paciente com alterações periodontais pode ser afetado pela Ortodontia de maneira positiva através de uma correta indicação, planejamento e execução conjunta das terapias periodontal e ortodôntica. Este trabalho se propôs a revisar a literatura sobre a inter-relação entre a Ortodontia e a Periodontia, apresentando um caso clínico no qual as terapias conjuntas foram essenciais para o estabelecimento da harmonia entre função mastigatória e estética dentogengival.

The orthodontic treatment for adults with reduced periodontium needs a multidisciplinary action, transforming patients with non-attractive interdental spaces, extrusions, or pathologic migrations into esthetically improved dentitions and still retrieving the masticatory function. There is a positive effect of orthodontic treatment for patients with periodontal problems when correct indication, planning, and execution are made. This paper revises the literature regarding the ortho-perio relationship, presenting a clinical case where both therapies were essential to reestablish harmony and function for dentogingival esthetics.

Ectopic Eruption of a Transmigrated Mandibular Canine: A Rare Case Report.

Migration of teeth, both physiological as well as pathological, is a well-documented phenomenon. Transmigration, on the other hand, is a rare phenomenon where a tooth crosses the midline and migrates to the opposite side without any pathological influence. An impacted tooth especially canines migrate to a location some distance away but do not usually cross the midline. Even so, the tooth remains impacted. Here is a unique case of transmigration of a left mandibular canine, which has erupted labial to its counterpart on the right mandibular arch. Transmigration of the mandibular canine is a rare phenomenon. Even rare is an eruption of this transmigrated canine into the opposite arch where it can be mistaken as a supernumerary tooth.

Transmigrated teeth / Transmigração dentária

Pre-eruptive migration of a tooth across the midline is called transmigration. This article reviews the literature on tooth transmigration. In the literature there is no consensus on the definition of true cases of transmigration and impacted teeth. Transmigration is a rare phenomenon that typically affects the mandibular canines. There is no known etiology for its occurrence, however, there are many and varied etiological factors involved in transmigrated teeth, such as ectopic growth of the tooth bud, retention or premature loss of a primary tooth, inadequate eruption space and excessive length of crown. Genetic factors, endocrine disorders and trauma have also been also proposed as etiological factors. In most clinical reports, transmigrated teeth were found in a horizontal position, below the apices of the erupted teeth and in the majority of cases, such a migrated tooth remains impacted; however, it may sometimes erupt later in its new position. When it is diagnosed in radiographic exams, careful evaluation is necessary in order to establish the most adequate treatment. Extraction of the transmigrated tooth appeared to be the only choice of treatment.

A migração pré-eruptiva de um dente através da linha média é chamada de transmigração. O objetivo deste artigo é apresentar uma revisão da literatura sobre a transmigração dentária. Na literatura não há consenso sobre a definição de casos de verdadeiros de transmigração e dentes impactados. Transmigração é um fenômeno raro, que normalmente afeta os caninos inferiores e a sua etiologia é desconhecida, porém vários fatores etiológicos podem estar envolvidos nos casos de transmigração, tais como o crescimento ectópico da raiz do dente, retenção ou perda prematura de um dente decíduo, espaço insuficiente erupção e comprimento excessivo da coroa. Fatores genéticos, doenças endócrinas e trauma também foram citados como possíveis fatores etiológicos. Nos relatos clínicos os dentes transmigrados foram encontrados em posição horizontal, abaixo os ápices dos dentes irrompidos e na maioria das vezes, um dente com transmigração permanece impactado; no entanto, posteriormente, pode irromper em sua nova posição. Quando diagnosticado, por exames radiográficos, é necessário um planejamento criterioso para o estabelecimento do tratamento mais adequado. A exodontia é o tratamento de escolha para os casos de transmigração dentária.

First case of bimaxillary transmigration of impactedcanines: report of a rare case and review of literature / Primeiro caso de transmigração bimaxilar de caninosimpactados: relato de um caso raro e revisão da literatura

Objective: To present a rare case of bimaxillary transmigration of impacted canines. Discussion: Preeruptivemigration of a tooth across the midline is termed transmigration. Transmigration typically affectsthe mandibular canines, but occurs rarely in maxillary canines as well. Transmigration of mandibular canineacross the midline is rare. An even less common finding is transmigration of maxillary canine acrossthe midline. The least common finding is bimaxillary occurrence of canines transmigration. Conclusion:Migration of both upper and lower canine teeth on the same side across the midline is called bimaxillarytransmigration, which is a very rare phenomenon of oral and maxillofacial complex, often undetected inroutine dental examination, neither clinical, nor periapical radiographic examination.

Objetivo: Apresentar um caso raro de transmigração bimaxilar de caninos impactados. Discussão: A migraçãopré-eruptiva de um dente através da linha média é denominado transmigração. A transmigraçãotipicamente afeta os caninos inferiores, mas pode ocorrer raramente em caninos superiores também. Transmigraçãode canino inferior através da linha média é rara, porém um achado ainda menos comum é a ocorrênciade transmigração bimaxilar de caninos. Conclusão: A migração de caninos superiores e inferiores nomesmo lado e cruzando a linha média é chamada de transmigração bimaxilar, um fenômeno raro de sistema bucal e maxilofacial, frequentemente diagnosticado em exame clínico odontológico de rotina ou exame radiográficoperiapical.

Unusual intraosseous transmigration of impacted tooth

Transmigration of an impacted tooth through the symphyseal suture is a rare and special developmental anomaly of unknown etiology that is unique to the mandibular canine. Maxillary canine transmigration is even rarer. Transmigrated canines are particularly significant due to the aesthetic and functional importance. A maxillary lateral incisor crossing the mid-palatal suture has never been reported in the literature. The aim of this report is to present the first case of simultaneous transmigration of a lateral incisor and canine in the maxilla. The paper also reports four unusual cases of unilateral canine transmigration in the maxilla and mandible and successful eruption of one of the transmigrated mandibular canines following orthodontic traction. Etiology of transmigration and its clinical considerations are also discussed.

Reactive positioning of pathologically migrated tooth following non-surgical periodontal therapy.

While contemporary periodontics has witnessed the continued emergence of sophisticated techniques to resolve esthetic concerns through various periodontal procedures, frequently the early stages of periodontal diseases are best treated with non-surgical periodontal therapy. This short communication presents a case of reactive positioning of pathologically migrated anterior tooth following non-surgical periodontal therapy.

Clinical study of orthodontic treatment for displacement of anterior tooth caused by periodontal disease / 中国医师进修杂志

Objective To observe the clinical efficacy of orthodontic treatment for displacement of anterior tooth caused by periodontal disease. Methods Forty-seven patients with displacement of anterior tooth caused by periodontal disease were divided into study group (26 cases) and control group (21 cases)according to the therapy method, the study group received periodontal basic treatment combined with orthodontic treatment, while the control group only received periodontal basic treatment, the changes of periodontal pocket depth, bleeding index, anterior coverage, overbite, alveolar bone height in two groups before and after treatment were observed and compared. Results The periodontal pocket depth, bleeding index, anterior coverage and overbite of study group after treatment were (3.12±0.53) mm, (27.30±4.25)%, (2.53 ± 0.76) mm and (2.18 ± 0.53 ) mm respectively and which were significantly lower than those before treatment [(5.35 ± 0.68 ) mm, (97.60±7.53 )%, (6.22±1.43 ) mm, (4.53±2.25)mm], the difference was statistically significant (P＜ 0.05 ), and the decrease extent was more obvious than the control group, the difference between two groups was statistically significant(P＜0.05); the above indicators in control group after treatment also dropped, but compared with those before treatment there was no significant difference (P ＞0.05); the alveolar bone height in both groups had no obvious change before and after treatment.Conclusion Periodontal basic treatment combined with orthodontic treatment can correct the malposed anterior teeth, improve the periodontal conditions, it has good application prospects.

Orthodontic treatment for maxillary anterior pathologic tooth migration by periodontitis using clear aligner

PURPOSE: Pathologic tooth migration (PTM) is a tooth displacement which is derived from imbalance of tooth retention force and is dominantly found out in maxillary anterior area. PTM in maxillary anterior area was tried to corrected with periodontal treatment and a clear aligner in this study and the result was evaluated clinically and radiographically. METHODS: For the treatment of a patient with chronic periodontal disease accompanied by maxillary anterior pathologic tooth migration, clear aligner was applied to move teeth after a series of case-related periodontal therapy. Clinically, probing depth, gingival recession, clinical attachment level and mobility were measured pre- and post-treatment, and radiographic examination was performed as well. RESULTS: Clinically, we found the decrease of the probing depth, gingival recession, clinical attachment level and mobility. And we could also acknowledge the reduction of vertical and horizontal dimension on infrabony defect radiographically. However, it is still controversial if there was an actual bone filling. CONCLUSIONS: Clear aligner is an effective appliance to move teeth since it costs little in terms of expense and time. In addition, it wraps whole crowns, providing advantages to deal with crowding, spacing, and size of arch. In short, clear aligner could be a useful treatment option for PTM patient, since it provides decreased probing depth, gingival recession, clinical attachment level, mobility and esthetical restoration.

Bilateral transmigration of impacted mandibular canines: report of two cases and review / Transmigração bilateral de caninos inclusos mandibulares: relato de dois casos e revisão

Objective: To present and discuss a rare case of transmigration of bilateral mandibular canines. To review the literature and to discuss treatment. Discussion: Transmigration of the canine tooth is an uncommonphenomenon, often undetected in routine dental examinations. The less common finding is type 5 (the canine is positioned vertically in the midline with the long axis of the tooth crossing the midline)and the least common phenomenon is bilateral occurrence of type 5. There is no known etiology for its occurrence. Conclusion: Transmigration of mandibular canines across the midline is a rare condition. An even less common finding is bilateral transmigration of canines across the midline.

Objetivo: Apresentar e discutir um caso raro de transmigração bilateral de caninos mandibulares; revisar a literatura; e discutir tratamentos. Discussão: A transmigração de caninos é um fenômeno incomum que frequentemente não édetectado no exame clínico de rotina. O achado menos comum é o tipo 5 (canino posicionado verticalmente com o seulongo eixo cruzando a linha média) e o fenômeno menos comum é a ocorrência bilateral do tipo 5 de transmigração. A sua etiologia é desconhecida. Conclusão: A transmigração de caninos mandibulares cruzando a linha média é rara e um achado ainda menos comum é a transmigração bilateral de caninos cruzando a linha média.

Exodoncia de diente supernumerario, canino en transposición y enucleación de odontoma complejo: reporte de caso / Extraction of supernumerary tooth, transposed canine and complex odontoma enucleation: a case report

Las anomalías dentarias más frecuentes e importantes que afectan a los niños son la presencia de piezas supernumerarias, piezas retenidas y odontomas. Algunos dientes retenidos se pueden encontrar en transposición. Reportamos el caso de una paciente de sexo femenino de 11 años de edad con presencia de diente supernumerario, canino en transposición y odontoma complejo situados en la hemiarcada derecha del maxilar superior. El motivo de consulta fue por la presencia de dientes anteriores sobresalidos que no le permitía realizar un buen sellado labial. Al examen clínico, presentaba gingivitis generalizada asociada a placa bacteriana, secuencia de erupción retardada por permanencia de pieza 53, ausencia clínica de pieza 13, aumento de volumen en palatino a nivel de piezas 12 y 11 de consistencia dura y coloración blanquecina que a la presión presentaba isquemia. La presencia del odontoma complejo a nivel cervico mesial de la pieza 16 fue un hallazgo radiográfico. El abordaje quirúrgico se realizó en dos fases debido a las zonas donde se encontraban las tres patologías. El diagnóstico y tratamiento multidisciplinario fueron de vital importancia. En este caso, odontopediatría, radiología, ortodoncia y cirugía estuvieron involucrados.

The most common and major dental anomalies affecting children include the presence of supernumerary teeth, impacted teeth and odontomas. Some impacted teeth are found in transposition. We report a case of a 11 years old girl with presence of supernumerary tooth, transposed canine and complex odontoma located on the right quadrant of the maxilla. The chief complaint was the presence of protruding front teeth that did not allow her to do a good lip seal. At the clinical examination, the patient presented generalized gingivitis associated to dental plaque, delayed eruption sequence due to permanence of 53, clinical absence of 13, increased volume on the palatal area at 12 and 11 with hard consistency and white areas that had ischemia to pressure. The presence of complex odontoma at the mesial cervical level of 16 was a radiographic finding. The surgical approach was conducted in two phases because the areas where the three pathologies were. The diagnosis and multidisciplinary treatment were of vital importance. In this case, pediatric dentistry, radiology, orthodontics and surgery were involved.

Further migration of tooth in patient with reduced periodontium: a case report

Pathologic tooth migration (PTM) is a common complication following moderate to severe chronic periodontitis, which lead to the undesirable consequences such as traumatic occlusion and impaired aesthetic appearance. Multidisciplinary approach had been successfully used in overcoming the problem. However, since periodontal tissue support is reduced in PTM, further migration of teeth may occur as they were always subjected to the external forces such as occlusion and soft tissue pressure during function. This case report described a 41 year-old male with a further migration of his upper right central incisor after periodontal therapy. After multidisciplinary approach was carried out to overcome the problem and the tooth was on stable condition, permanent splinting was placed to secure the tooth.

Migration of mandibular third molar to the condyle without cystic change: a case report

Combined periodontal regenerative and prosthetic treatment of pathologic migration of anterior teeth / 대한치주과학회지

PURPOSE: Pathologic tooth migration (PTM) commonly occurs in the anterior region and is associated with periodontal disease. The treatment of PTM of anterior teeth can be complex and time consuming, and a multidisciplinary approach is often required. MATERIALS AND METHODS: The patient was a 38-year-old woman with a chief complaint of saving and realigning her elongated maxillary left central incisor. This paper describes the successful combined periodontal regenerative (guided tissue regeneration) and prosthetic treatment and a 2-year follow-up of maxillary central incisor with pathologic tooth migration, deep intrabony defect, and poor prognosis. RESULTS: The right maxillary central incisor was restored by laminate veneer and the left by all-ceramic crown. The patient had no pain and discomfort and was satisfied with the outcomes of her treatment for 2 years. She has maintained her recall program at the Department of Periodontology at 3 months interval. CONCLUSION: The key step in the successful treatment of PTM in anterior region is to obtain a high level of cooperation from the patient. Maintenance of the treatment result of PTM is dependent on the continuous preservation of periodontal health.