Diastema Closure: A Case Report

This clinical study describes two combined modalities of treatment, orthodontic and porcelain laminate placement, to facilitate diastema closure. Geristore, a dual-cure fluoride-releasing composite was mixed to bond orthodontic brackets in place. H6 elastic bands were used with the orthodontic brackets to close the diastemas sufficiently and to allow the placement of Cerlnate porcelain laminates to produce a beneficial cosmetic effect.     

A Conservative Treatment for Amelogenesis Imperfecta with Direct Resin Composite Restorations: A Case Report

Rehabilitation of a patient with amelogenesis imperfecta (AI) from both the functional and esthetic standpoints represents a challenge. The complexity of the condition requires an interdisciplinary approach for optimal treatment outcomes. A number of treatment options have been proposed. Recently, the use of bonded restorations has gained popularity because of the many benefits associated with these materials; excellent esthetics, conservative approach, and improved wear make their use advantageous. This article describes a direct approach with resin composite restorations for the transitional treatment of an adolescent with hypoplastic AI who had not completed skeletal growth. Protection against further wear, sensitivity, and plaque accumulation while significantly enhancing the patient's esthetic appearance made this case a success. Furthermore, this article describes the use of a "Clear matrix" technique, which considerably helped simplify the placement of the bonded restorations.

CLINICAL SIGNIFICANCE

This article highlights (1) the importance of an interdisciplinary approach to the successful treatment planning of a patient with hypoplastic amelogenesis imperfecta (AI), and (2) the conservativeness and suitability of full coverage direct resin composite restorations for the transitional treatment of AI-affected teeth on an adolescent patient who has not yet completed skeletal growth.     

Esthetic Compomer Restorations in Posterior Teeth Using a New All-in-One Adhesive: Case Presentation

Abstract: Compomers have continually gained in importance since their introduction in 1993, especially because of their ease of handling. The main indications are cervical lesions, Class III restorations, and restorations in the primary dentition. To extend the indications of compomers to esthetic Class I and II restorations in the permanent dentition, improvements in wear resistance and bond strength need to be accomplished. Studies have shown an improved bond strength and less marginal gap formation between compomers and enamel and dentin with acid etching of the tooth before application of conventional mild self-etching adhesives. Newly formulated, improved self-etching adhesives with a higher demineralization potential recently have been developed. The objective of this case presentation is to demonstrate step-by-step the clinical procedure for the application of a newly developed self-etching adhesive with high demineralization potential in combination with a compomer material in occlusal cavities.     

Silicone Additive Manufactured Indices Performed from a Virtual Diagnostic Waxing for Direct Composite Diastema Closure Combined with Resin Infiltration Technique on White Spot Lesions: A Case Report

The present article describes the resin infiltration technique to address white spots lesions presented on anterior and premolar teeth of a young patient after orthodontic treatment and the digital workflow for planning a diastema closure on the maxillary anterior teeth using facial photographs, an intraoral scanner, a facially driven diagnostic waxing using a dental computer‐aided design (CAD) software, and 3‐piece additive manufactured (AM) clear silicone indices. The virtual design of the silicone indices was completed using an open‐source CAD software and included a flexible clear buccal piece, flexible clear lingual piece, and rigid clear custom tray. The unique 3‐piece index design allows a horizontal path of insertion, controlled uniform thickness of the indices, flexible and rigid material properties combination, accurate translation of the diagnostic waxing into the patient´s mouth, and digital storage of the designs.     

2种粘接剂应用于银汞合金粘接修复的临床应用评价

目的:比较2种粘接剂粘接银汞合金修复的粘接效果。方法:选择80颗有后牙龋坏者,其近中及远中均有邻牙存在,充填物在1年内有脱落史者,随机分为A、B组(A组:树脂加强型玻璃离子水门汀组;B组:树脂型银汞粘接剂组)进行充填,随访1年,观察其临床效果。结果:卡方检验2组疗效无显著差异。结论:用2种粘接剂粘接银汞合金修复在1年内达到了同样的效果,而树脂加强型玻璃离子水门汀组较树脂粘接剂组操作简单,为临床治疗提供了新的思路。     

原发牙龈B细胞性淋巴瘤1例

本文报告1例原发牙龈B细胞性淋巴瘤。患者男,28岁,临床表现为:左上颌牙龈无痛性逐渐增生1月。专科检查发现患者23,24,25,26颊侧见一大小约2cm*1.5cm*1cm肿物。影像学检查24,25牙周膜增宽,颊侧骨质呈低密度影像,边界不清。病理镜下可见异形淋巴细胞弥漫排列,免疫组化示:CD20(-),CD2(-),CD10(-),CD138(+),CD79a(+),LCA(+),Ki-67:80%左右(+)。诊断为原发牙龈B细胞性淋巴瘤。     

下颌牙龈外周型成釉细胞瘤1例

成釉细胞瘤是一种较常见的牙源性肿瘤,大多数发生在颌骨内。发生在颌骨外软组织中的成釉细胞瘤极为少见。现将我科门诊治疗的1例下颌前牙前磨牙区外周型成釉细胞瘤病例报告如下。     

胃腺癌牙龈转移的病例报告及文献复习

目的:探讨1例胃腺癌牙龈转移的诊断、治疗及预后情况,为临床上胃癌合并口腔肿物患者的诊断提供参考。方法:报道扬州大学附属苏北人民医院1例胃腺癌牙龈转移患者的临床表现、治疗过程及预后情况,同时结合文献对此类病例的临床特点与诊治进行回顾分析。结果:患者因“右侧下颌后牙区牙龈肿块6个月”来我院就诊,确诊胃腺癌病史1个月。经口腔活检,结合病史考虑为转移性腺癌(牙龈)。收入院后,择期行手术切除牙龈转移瘤,并进行术后化疗。患者目前伤口愈合良好。临床上此类患者较少见,一般胃癌发生口腔转移多为疾病晚期,预后较差,生存时间较短。结论:胃腺癌合并口腔转移病例在临床上较少见,其准确诊断应多结合病史、影像学及病理结果,患者多处于癌症晚期,预后一般较差。临床上对于胃癌患者的口腔肿物需予以重视,避免误诊。     

新生儿牙龈囊肿病例报道及文献复习

报道1例新生儿牙龈囊肿病例,复习相关文献,通过介绍此类疾病的发生、发展及症状,为临床提供重要的诊断依据,从而避免不必要的治疗。     

Multidisciplinary Management of a Severe Maxillary Midline Diastema: A Clinical Report

A maxillary midline diastema (MMD) is a common form of incomplete occlusion and often is a primary complaint of patients during dental consultations. MMD is considered to be a multifactorial phenomenon and can therefore be best restored with a multidisciplinary approach. This clinical report presents a multidisciplinary approach to the management of a 4.0‐mm MMD by using limited orthodontics combined with periodontal and prosthodontic treatments.     

Phenytoin-Induced Gingival Overgrowth Resulting in Delayed Eruption of the Primary Dentition: A Case Report

A case of delayed eruption of the primary dentition secondary to Phenytoin therapy in a 4-year-old child is reported. The patient had been on phenytoin therapy since the first months of life. Radiographs revealed that alveolar but not gingival emergence had occurred. Surgical excision of the excess gingival tissue was accomplished under general anesthesia. Oral hygiene procedures were stressed and parental cooperation solicited. Three- and ninemonth postoperative visits revealed no regrowth of gingival tissue and continued eruption of the primary dentition.     

Treatment Using Functionally Fixed Prosthesis: A Case Report

Most dental practitioners as well as their patients prefer to have fixed rather than removable prosthesis. However, there are many clinical situations that prohibit the use of the fixed treatment modality. These clinical cases can vary from, simply not having the proper number of healthy teeth and/or implants to, the esthetically challenging cases of high smile lines and severe loss of alveolar support. The approach of using a traditional removable prosthesis in these situations has always been met with severe compromises. The functionally fixed restoration is a third modality of treatment that can solve many of the problems of the removable restoration and at the same time provide the same comfort and success of the fixed prosthesis. This restoration has a pontic assembly that is removed by the patient for periodontal maintenance. This article presents a case report which describes a technique for treatment of partially edentulous maxilla with severe loss of alveolar support using a fixed removable prosthesis/Andrew’s bridge.

     

Endodontic Retreatment Using Dynamic Navigation: A Case Report

IntroductionDynamic navigation systems are used in dental implantology to optimize the accuracy of dental implant placement.MethodsA 30-year-old man was seen at the endodontic clinic of the Universidad Autónoma de Yucatán for pain in the left maxillary lateral incisor. A previously treated tooth with symptomatic apical periodontitis was diagnosed. The patient accepted treatment, and after signing an informed consent form, minimally invasive coronal access was performed through a zirconia crown. Then a post removal was performed with an ultrasonic tip to 2 mm before the apical gutta-percha limit, and the removal of material was completed manually with a K-file.ResultsThis case report demonstrates the use of dynamic navigation to remove a post from under a zirconia crown for the retreatment of a failing root canal procedure. The removal of fiber posts from endodontically treated teeth can present a unique challenge for clinicians. Numerous techniques and instrument kits are recommended for the removal of fiber posts, but the risk of excessive root structure damage is a major concern because the ability to differentiate the color difference between peripheral dentin and a bonded fiber post can complicate the accuracy of the removal.ConclusionsThe dynamic navigation system enabled minimally invasive removal of the fiber post with a high degree of accuracy, thus ensuring that there was no unnecessary removal of root structure. Dynamic navigation using real-time monitoring could reduce the attendant risk of iatrogenic errors in complex treatment cases.     

氧化锆种植体修复在钛过敏患者全口重建中的运用——一例临床试验病例报告

本文通过介绍一例全口重建的病例,证明氧化锆种植修复可以作为钛过敏患者口腔修复的治疗选择.患者是一位年轻女性,全口牙齿因釉质发育不全而广泛缺损.拔除所有天然牙后,植入15个表面酸蚀处理(ICE surface)的CeraRoot种植体(上颌7个,下颌8个).术后3个月临时性修复并过渡性使用2个月.最终采用氧化锆桥瓷贴面永...     

Endodontic Microsurgery Using Dynamic Navigation System: A Case Report

Dynamic navigation systems were introduced to facilitate dental implantology by improving the accuracy of dental implant positioning. Dynamic navigation integrates surgical instrumentation and radiologic images by using an optical positioning device controlled by a dedicated computerized interface. These features could help in reducing the risk of unintentional iatrogenic damage to nearby anatomic structures and perform minimally invasive or flapless surgery, leading to reduced patient postoperative discomfort and improved healing. The present case report showed the use of the Navident dynamic navigation system (ClaroNav, Toronto, Ontario, Canada) by an undergraduate student for bone cavity preparation and root-end resection in the surgical endodontic treatment of a lesion in an upper lateral incisor. The system allowed precise localization of the root and precise apicoectomy with a minimal invasive cavity. The dynamic navigation system allowed the student to precisely direct the bur in 3 dimensions. The osteotomy and root-end resection were easily and quickly performed by the undergraduate student with a minimally invasive approach without iatrogenic errors. The navigation system allowed the operator to precisely perform a minimally invasive osteoctomy and root-end resection during endodontic surgery. The development of dedicated surgical navigation systems for endodontic surgery could facilitate the operator's maneuvers and reduce the risk of iatrogenic errors.