AJO-DO clinical companion最新文献

{"title":"Esthetic and functional rehabilitation of an impacted maxillary canine and microdontic lateral incisor: A multidisciplinary approach","authors":"Damla Dalman Şimşek ,&nbsp;Hafize Gamze Demirbaş","doi":"10.1016/j.xaor.2025.01.006","DOIUrl":"10.1016/j.xaor.2025.01.006","url":null,"abstract":"<div><div>This case report presents the treatment and 1-year follow-up of a patient with an impacted maxillary canine and microdontic lateral incisor through orthodontic-restorative collaboration. Anterior recontouring is the final step in orthodontic therapy to maximize function and appearance. This case report demonstrates a minimally invasive and direct method of postorthodontic anterior recontouring using an injectable resin composite technique with a digital workflow. Orthodontic treatment involves repositioning the impacted tooth, aligning the microdontic teeth to an ideal position with fixed appliances, and leveling the mandibular and maxillary teeth. In addition, the restorative treatment of microdontic maxillary lateral incisors involves creating a transparent index on a digitally modeled and 3-dimensional-printed model, transferring the design to the target teeth with a highly-filled flowable composite resin. In the esthetic rehabilitation of teeth after orthodontic treatment, the injectable resin composite technique with a digital workflow is a predictable, cost-effective, and minimally invasive treatment alternative. The 1-year follow-up demonstrated successful color and gloss stability, as well as the integrity of the restorative material.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 2","pages":"Pages 206-223"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Abnormal periodontal changes incidental to total arch intrusion to treat a severe gummy smile","authors":"Shunsuke Kako ,&nbsp;Takuma Sato ,&nbsp;Masako Tabuchi ,&nbsp;Takeshi Kikuchi ,&nbsp;Takeo Sekiya ,&nbsp;Yuki Aoki ,&nbsp;Hiroyuki Nawa ,&nbsp;Ken Miyazawa","doi":"10.1016/j.xaor.2025.02.002","DOIUrl":"10.1016/j.xaor.2025.02.002","url":null,"abstract":"<div><div>This case report presents the treatment of a severe gummy smile in an 18-year-old female using nonsurgical orthodontic treatment with mini-implants and a modified palatal bar. The patient, who presented with protruding anterior teeth and excessive gingival exposure, opted for orthodontic treatment over surgery. Two mini-implants were placed in the midpalatal region near the maxillary molars to facilitate maxillary arch intrusion and retraction of the anterior teeth. A nickel-titanium archwire with a 45° gable bend, followed by a stainless-steel archwire with an intrusive cantilever, was used sequentially in conjunction with the Aichi-Gakuin palatal bar to achieve 5.0 mm of anterior intrusion and 2.5 mm of molar intrusion. Although the orthodontic treatment effectively corrected the gummy smile, significant periodontal changes were observed. The maxillary anterior teeth became embedded in the gingiva, requiring gingivectomy on the labial side and surgical crown lengthening with osteoplasty on the palatal side to restore the biologic width. No relapse occurred, and the treatment outcomes were stable 25 months posttreatment. This report highlights the potential for nonsurgical orthodontic treatment to correct a severe gummy smile and emphasizes the importance of managing periodontal tissue remodeling when substantial tooth intrusion is performed.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 2","pages":"Pages 224-240"},"PeriodicalIF":0.0,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143825821","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dental photography using digital single-lens reflex cameras vs smartphones","authors":"Kathryn Teruya ,&nbsp;Jae Hyun Park ,&nbsp;Curt Bay","doi":"10.1016/j.xaor.2024.11.004","DOIUrl":"10.1016/j.xaor.2024.11.004","url":null,"abstract":"<div><h3>Introduction</h3><div>Smartphone photography has increased in quality with the advancement of technology. Dental photography using a digital single-lens reflex (DSLR) camera has been a critical tool for patient education, treatment planning, self-evaluation, and research in the orthodontic specialty. This study aimed to determine if there is a significant difference in quality between facial and intraoral photographs taken with DSLR cameras and smartphones.</div></div><div><h3>Methods</h3><div>Dental students and practicing orthodontists took an 18-question survey to compare facial and intraoral photographs taken with a DSLR camera and a smartphone. Participants evaluated the photographs based on color, sharpness, depth of field, and overall quality. Chi-square analyses and Fisher exact tests were used to evaluate potential differences across image sources and respondent types.</div></div><div><h3>Results</h3><div>Approximately 329 participants completed this survey with an overall response rate of 74.9%. Facial photographs taken with a DSLR had significantly superior overall quality, sharpness, and depth of field than smartphone facial photographs (<em>P</em> &lt;0.05). Intraoral photographs taken with a smartphone had significantly superior overall quality, color, sharpness, and depth of field than DSLR photographs (<em>P</em> &lt;0.01).</div></div><div><h3>Conclusions</h3><div>This study suggests that intraoral photographs taken with a smartphone could provide a superior image quality than those taken by a DSLR camera, but not for facial photographs. As smartphone cameras continue to evolve, they have the potential to provide superior photographic quality for intraoral photographs compared with DSLR cameras.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 1","pages":"Pages 26-34"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395498","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Embodied cognition and the placebo effect: Implications for temporomandibular disorder therapy","authors":"Hasan Camcı ,&nbsp;Zeynep Çoban Büyükbayraktar","doi":"10.1016/j.xaor.2024.12.002","DOIUrl":"10.1016/j.xaor.2024.12.002","url":null,"abstract":"<div><div>Our cognitive state influences our emotional state, whereas negative emotions can lead to cognitive issues such as anxiety and depression and also impact our physical body. Conversely, bodily movements and postures can affect our consciousness, influencing how we believe—either improving or worsening our state. This bidirectional interaction between cognition and the body means that each can influence the other. Understanding this reciprocal relationship can be beneficial in the treatment of temporomandibular disorder (TMD). This article aims to raise awareness of the interplay among cognition, emotion, and the body and to provide orthodontists and patients with TMD with a novel perspective on the treatment of TMD.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 1","pages":"Pages 1-5"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characteristics, patterns, and prevalence of impacted mandibular second molars in Chinese Americans: A radiographic study","authors":"Shirley Schonberger ,&nbsp;Yehoshua Shapira ,&nbsp;Yon H. Lai ,&nbsp;Tamar Finkelstein","doi":"10.1016/j.xaor.2024.11.002","DOIUrl":"10.1016/j.xaor.2024.11.002","url":null,"abstract":"<div><h3>Introduction</h3><div>Permanent mandibular second molar (MM2) eruption disturbances and impaction are relatively uncommon dental anomalies. However, its early diagnosis is necessary to prevent problems that could require multiple and complex treatments. The present study evaluates early radiographic characteristics, patterns, and prevalence of MM2 impactions.</div></div><div><h3>Methods</h3><div>Initial panoramic radiographs of 5,575 orthodontic patients aged 9-15 years (mean, 13 years) from Chinese American ethnic origin were examined for MM2 impaction and the presence of associated adjacent permanent mandibular third molar (MM3). These radiographs were analyzed according to gender, position, and type of angulation of impacted MM2s, the presence or absence and the stage of development of the adjacent MM3s.</div></div><div><h3>Results</h3><div>A prevalence of 2.4% for MM2 impaction was detected in 136 patients with 213 impacted MM2s in the Chinese American study group. Increased mesial angulation was present in most of the impacted MM2s (51%). MM3s were found adjacent to the impacted MM2s in 93.4% of the patients in various stages of development, and the most common stage was the half-crown (44%). Various patterns of the impacted MM2 adjacent to the permanent mandibular first molar were described and classified. Bilateral impactions were present more than unilateral.</div></div><div><h3>Conclusions</h3><div>A prevalence of 2.4% was detected for MM2 impaction in Chinese American orthodontic patients in New York City. Most of them presented an increased mesial angulation with their crowns in contact at the cementoenamel junction of the adjacent first molars. Third molars were detected developing distally or occlusally adjacent to most of the impacted second molars, but the possible involvement of the third molars in MM2 impaction is questionable. A new classification scheme for MM2 impaction into six patterns according to the level of contact with the adjacent first molars’ distal aspect is presented. Early radiographic detection, preventive and interceptive measures, and initiating orthodontic intervention should be considered for impacted MM2s.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 1","pages":"Pages 45-55"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395562","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strategic maxillary second molar extraction in Class II malocclusion: A 22-year follow-up update","authors":"Darwin Vaz de Lima ,&nbsp;Marcos Roberto de Freitas ,&nbsp;Karina Maria Salvatore Freitas","doi":"10.1016/j.xaor.2024.08.004","DOIUrl":"10.1016/j.xaor.2024.08.004","url":null,"abstract":"<div><div><span><figure><span><img><ol><li><span><span>Download: <span>Download high-res image (290KB)</span></span></span></li><li><span><span>Download: <span>Download full-size image</span></span></span></li></ol></span></figure></span></div><div>This manuscript provides a 22-year posttreatment follow-up update on a 19-year-old woman treated with strategic extraction of the maxillary second molars. The patient initially presented with a Class II malocclusion, maxillary crowding, and absence of the mandibular first molars. Two extractions were needed in the maxillary arch, and the extraction of two maxillary second molars was chosen as a treatment option, with distalization of the first molars and retraction of anterior teeth. The results were excellent, with Class I canine and molar relationships obtained, normal overjet and overbite, maxillary and mandibular third molars in occlusion and well positioned, and no significant change in the facial profile. The stability of the treatment results was maintained 22 years after treatment. The correct treatment protocol and biomechanics, excellent patient compliance during active treatment, and the proper retention use were essential for maintaining long-term stability after 22 years of treatment in this patient.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 1","pages":"Pages 127-129"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"February 2025","authors":"Dr Allen Moffitt (CE Editor)","doi":"10.1016/j.xaor.2025.01.003","DOIUrl":"10.1016/j.xaor.2025.01.003","url":null,"abstract":"","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 1","pages":"Page 130"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395573","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Redirecting root development in dilacerated inverted incisors: A two-case series of early treatment","authors":"Kexin Zhang ,&nbsp;Shiyan Huang ,&nbsp;Yuxing Ma ,&nbsp;Xiaobing Li ,&nbsp;Yiran Peng","doi":"10.1016/j.xaor.2024.11.001","DOIUrl":"10.1016/j.xaor.2024.11.001","url":null,"abstract":"<div><div>Treatment of an inverted central incisor with dilaceration is challenging for clinicians because of its complicated anatomy and abnormal position. Herein, we present two cases of early orthodontic treatment in children with inverted dilacerated maxillary central incisors. The treatment plan involved arch expansion, surgical exposure using the closed-eruption technique, and orthodontic traction, which resulted in the proper alignment of the teeth. Early orthodontic treatment improved the morphology of the dilacerated roots, with newly developed roots growing along the direction of the axis of the crown. Furthermore, early treatment reduced the probability of root exposure during tooth alignment, thereby decreasing the need for endodontic treatment, including apicoectomy. These findings indicate that early orthodontic treatment may be considered for inverted incisors with dilacerated roots owing to its ability to promote the morphologic development of the curved roots, enhance the preservation of the teeth, and restore oral function.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 1","pages":"Pages 35-44"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395499","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Lateral incisor and canine substitutions associated with the extraction of a horizontally impacted maxillary central incisor with root dilaceration","authors":"Bruno Moreira das Neves,&nbsp;Jonas Capelli Junior,&nbsp;Flavia Raposo Gebara Artese,&nbsp;Cristiane Canavarro","doi":"10.1016/j.xaor.2024.09.008","DOIUrl":"10.1016/j.xaor.2024.09.008","url":null,"abstract":"<div><div>Orthodontic traction poses significant challenges, requiring careful evaluation of risks and benefits to determine the most appropriate course of action, whether through traction or extraction. This case report describes the orthodontic treatment of a 13-year-old female with an impacted maxillary central incisor and insufficient arch space to accommodate the impacted tooth. Considering the horizontal position of the impacted incisor, the risk of damage to the adjacent tooth roots, and the lack of space, extraction of the impacted tooth and 3 premolars followed by the reshaping of 3 maxillary teeth through restorative dentistry was the optimal treatment approach. After treatment, the patient exhibited a straight facial profile, an esthetically pleasing smile, and normal overbite and overjet, along with well-established occlusion. Evaluation of potential treatment approaches revealed that the disadvantages of attempting orthodontic traction outweighed the benefits, making extraction of the unfavorably positioned impacted incisor the safer option. This case report underscores the importance of understanding orthodontic mechanics and employing multidisciplinary treatment approaches, including restorative dentistry, to achieve excellent esthetic and functional outcomes.</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 1","pages":"Pages 70-81"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Skeletal Class II malocclusion management with clear aligners and mini-implants","authors":"Shangyou Wen ,&nbsp;Hong Zhou ,&nbsp;Huiyi Hong ,&nbsp;Xin Nie ,&nbsp;Xuechun Yuan ,&nbsp;Wenli Lai ,&nbsp;Hu Long","doi":"10.1016/j.xaor.2024.09.007","DOIUrl":"10.1016/j.xaor.2024.09.007","url":null,"abstract":"<div><div>Vertical control plays a pivotal role in addressing skeletal Class II malocclusion. The advent of clear aligner therapy, coupled with the adjunctive use of mini-implants, heralds a significant paradigm shift in enabling accessible vertical control. Herein, we present a 28-year-old female adult with skeletal Class II malocclusion, hyperdivergence, and convex profile successfully treated by clear aligners. The treatment comprised molar distalization and concurrent molar intrusion, enhanced by the strategic placement of mini-implants in the maxillary infrazygomatic crest, mandibular buccal shelf, and midpalatal suture region. With adequate intrusion of both the anterior and posterior teeth through sophisticated and delicate biomechanical designs, counterclockwise rotation of the mandible and clockwise rotation of the occlusal plane occurred. The counterclockwise rotation of the mandible resulted in a significant remodeling of the bilateral condyles and increased chin prominence. The increase in chin prominence and retraction of the anterior teeth resulted in a straight profile. In addition, the esthetic smile arc was achieved with the clockwise rotation of the maxillary occlusal plane. No significant alveolar bone or root resorption was detected. Sophisticated biomechanical considerations were elucidated. This case report underscores an innovative clear aligner treatment paradigm of biomechanics-guided, esthetics-driven, periodontium-supported, and temporomandibular joint-compatible clear aligner therapy (BEPT-CAT).</div></div>","PeriodicalId":72140,"journal":{"name":"AJO-DO clinical companion","volume":"5 1","pages":"Pages 56-69"},"PeriodicalIF":0.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143395565","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}