Gingivoplasty

牙龈成形术
  • 文章类型: Case Reports
    牙龈肿大(GE)可由牙龈炎症引起,纤维过度生长,或者这两个因素的结合。各种病因对GE有贡献,包括低级创伤,医源性原因,药物诱导的作用,全身性疾病,斑块积累,荷尔蒙的影响,维生素缺乏,遗传倾向,和特发性原因。临床实践中的有效治疗取决于准确诊断根本原因。其中,斑块诱导的炎症是最常见的,由斑块和结石的积累驱动。保持口腔卫生的一个挑战是正畸治疗,会影响言语,咀嚼,美学,和心理健康。在这个案例报告中,一名21岁女性患者出现了与正畸矫治器使用相关的GE.为了解决这个问题,在局部麻醉下使用牙龈切除术和牙龈成形术手术切除多余的牙龈组织,切除的组织被送去进行组织病理学检查。手术后,应用牙周敷料(GCCoePack™)以保护组织并帮助愈合。该病例强调牙龈组织增大,覆盖了近一半的牙冠,导致斑块积累和美学问题。手术后,实现了一个适当的牙龈轮廓消除了上的口袋,增强了美观的外观。患者显示出积极的结果,没有剩余的超口袋,导致自然的牙龈轮廓,改进的美学,和减少斑块保留。在这种情况下,手术牙龈切除术和牙龈成形术被证明是成功的干预措施。
    Gingival enlargement (GE) can result from gingival inflammation, fibrous overgrowth, or a combination of both factors. Various etiological factors contribute to GE, including low-grade trauma, iatrogenic causes, drug-induced effects, systemic diseases, plaque accumulation, hormonal influences, vitamin deficiencies, genetic predispositions, and idiopathic reasons. Effective treatment in clinical practice hinges on accurately diagnosing the underlying cause. Among these, plaque-induced inflammation is the most common, driven by the accumulation of plaque and calculus. One challenge in maintaining oral hygiene is orthodontic treatment, which can impact speech, chewing, aesthetics, and psychological well-being. In this case report, a 21-year-old female patient developed GE associated with orthodontic appliance use. To address this, excess gingival tissue was surgically removed under local anesthesia using gingivectomy and gingivoplasty procedures, and the excised tissue was sent for histopathological examination. Following the surgery, a periodontal dressing (GC Coe Pack™) was applied to protect the tissue and aid in healing. The case underscores that enlarged gingival tissue, covering nearly half of the dental crowns, led to plaque accumulation and aesthetic concerns. Post-procedure, achieving a proper gingival contour eliminated suprabony pockets and enhanced the aesthetic appearance. The patient showed positive outcomes with no remaining suprabony pockets, resulting in a natural gingival contour, improved aesthetics, and reduced plaque retention. Surgical gingivectomy and gingivoplasty proved to be successful interventions in this case.
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  • 文章类型: Case Reports
    露出>4毫米牙龈组织的微笑称为牙龈微笑(GS),对人们的自信和审美外观产生负面影响。GS的治疗应根据潜在原因进行计划,例如牙齿的被动萌出改变,齿槽挤压术,上颌垂直过量,和短或过度活跃的嘴唇肌肉。在这个案例报告中,一名患有严重GS的患者接受了正畸和牙龈成形术治疗,在3D仿真等数字工具的帮助下,微笑设计,和3D打印指南。治疗效果明显,满意,不需要大范围的手术.我们的研究结果表明,牙龈成形术是一种微创,时间和成本效益的替代更广泛的程序来纠正严重的牙龈衰退。
    A smile that reveals >4 mm of gum tissue is called a gummy smile (GS), offering negative impacts on people\'s self-confidence and aesthetic appearance. The treatment for GS should be planned according to underlying causes such as altered passive eruption of teeth, dentoalveolar extrusion, vertical maxillary excess, and short or hyperactive lip muscles. In this case report, a patient with severe GS received orthodontic and gingivoplasty treatment, aided by digital tools such as 3D simulation, smile design, and 3D printed guides. The treatment yielded remarkable and satisfactory results, without the need for extensive surgery. Our findings suggest that gingivoplasty is a minimally invasive, time- and cost-effective alternative to more extensive procedures for correcting severe gum recession.
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  • 文章类型: Journal Article
    背景:骨角III类错牙合的患者通常在下颌前牙处的硬软组织体积不足。牙齿的唇前倾可能导致牙龈退缩。本研究的目的是探讨用软组织增强(PhMT-s)进行牙周表型修饰治疗是否可以预防这些患者的牙龈衰退。
    方法:4例III类骨骼错牙合畸形和牙周薄表型的患者接受了手术-正畸治疗。在牙齿移动之前,他们接受了骨膜下隧道入路微创前庭切口联合自体结缔组织移植,通过软组织增强(PhMT-s)进行牙周表型修饰.在三个不同的水平上测量了下颌前牙的唇牙龈厚度:在牙釉质交界处(GT0),CEJ(GT3)顶端3mm,CEJ(GT6)的顶端为6mm。这些测量是在基线时进行的,PhMT-s后三个月,牙齿失代偿后。此外,我们从一名患者的PhMT部位获取了活检样本.随后使用苏木精和伊红对所有切片进行染色,Masson三色,小天狼星红,和免疫组织化学。
    结果:PhMT-s后,唇牙龈的厚度增加了约0.42至2.00mm。在正颌前外科正畸治疗结束时,与基线相比,唇牙龈的厚度增加了约-0.14~1.32mm,并且在正颌前手术正畸治疗后没有发生牙龈退缩.组织学结果表明,从PhMT-s位点获得的移植物显示胶原纤维的沉积增加。此外,III型胶原的比例增加,移植物显示CD31和OCN的阳性表达显着降低。
    结论:PhMT-s增加了软组织的厚度,稳定表现出薄牙周表型并进行唇运动的牙齿的牙龈边缘。这归因于胶原纤维沉积的增加。
    BACKGROUND: Patients with skeletal angle Class III malocclusion usually have inadequate hard and soft tissue volume at the mandibular anterior teeth. The labial proclination at the teeth may lead to gingival recession. The purpose of this study was to explore whether periodontal phenotype modification therapy with soft tissue augmentation (PhMT-s) can prevent gingival recession in these patients.
    METHODS: Four patients with skeletal Class III malocclusion and a thin periodontal phenotype underwent surgical-orthodontic treatment. Prior to tooth movement, they underwent a minimally invasive vestibular incision with subperiosteal tunnel access combined with autogenous connective tissue grafts for periodontal phenotype modification with soft tissue augmentation (PhMT-s). The labial gingival thickness of the anterior mandibular teeth was measured at three distinct levels: at the cementoenamel junction (GT0), 3 mm apical to the CEJ (GT3), and 6 mm apical to the CEJ (GT6). These measurements were taken at baseline, three months following PhMT-s, and after tooth decompensation. Additionally, a biopsy sample was obtained from the PhMT-s site of one patient. All sections were subsequently stained using hematoxylin and eosin, Masson trichrome, Sirius Red, and immunohistochemistry.
    RESULTS: The thickness of the labial gingiva was increased about 0.42 to 2.00 mm after PhMT-s. At the end of pre-orthognathic surgical orthodontic treatment, the thickness of the labial gingiva was increased about - 0.14 to 1.32 mm compared to the baseline and no gingival recession occurred after the pre-orthognathic surgical orthodontic treatment. The histologic results demonstrated that the grafts obtained from the PhMT-s site exhibited increased deposition of collagen fibers. Moreover, the proportion of type III collagen increased and the grafts displayed significantly reduced positive expression of CD31 and OCN.
    CONCLUSIONS: PhMT-s increased the thickness of the soft tissue, stabilizing the gingival margin for teeth exhibiting a thin periodontal phenotype and undergoing labial movement. This is attributed to the increased deposition of collagen fibers.
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  • 文章类型: Journal Article
    背景:在临床牙冠延长术(CCL)过程中,准确确定生物宽度以及牙釉质与牙槽骨边界的关系至关重要。本研究的目的是提出关于在CCL之前的锥形束计算机断层扫描(CBCT)中的缩回技术的技术说明,强调这些技术提供的程序准确性和可预测性的显著提高。方法:CCL手术前应进行临床和放射学检查。有必要确定牙冠的长度,牙周袋的深度,和牙龈的表型。理想的CBCT检查应在软组织回缩的情况下进行。这可以使用卷收器或棉卷来实现。结果:嘴唇缩回,脸颊,舌头可以评估牙龈边缘,牙骨质-釉质交界处,还有牙槽骨.CCL程序的详细计划,这涉及到撤回,确保美学吸引力和新定义的牙龈天顶的成就,增强整体视觉和谐。结论:与常规影像学相比,CCL手术前CBCT中的软组织回缩操作为评估和诊断软组织和硬组织提供了有效的方法。这是因为美学CCL程序的详细规划。这种方法导致牙科的卓越美学结果,通过艺术与科学的和谐融合,为牙科美学的进步做出贡献。
    Background: An accurate determination of the biological width and the relationship of the cemento-enamel junction with the border of the alveolar bone is crucial during a clinical crown-lengthening (CCL) procedure. The aim of this study was to present a technical note about the retraction techniques in cone beam computed tomography (CBCT) prior to CCL, highlighting the significant enhancement in procedural accuracy and predictability that these techniques offer. Methods: Clinical and radiological examinations should be performed before a CCL procedure. It is necessary to determine the length of the tooth crowns, the periodontal pockets\' depth, and the phenotype of the gingiva. The ideal CBCT examination should be performed with soft tissue retraction. This can be achieved using retractors or cotton rolls. Results: Retraction of the lips, cheeks, and tongue allows one to assess the marginal gingiva, the cemento-enamel junction, and the alveolar bone. A detailed plan of the CCL procedure, which involves retraction, ensures both the aesthetic appeal and the achievement of a newly defined gingival zenith, enhancing the overall visual harmony. Conclusions: Compared with conventional radiographic imaging, the soft tissue retraction maneuver in CBCT prior to CCL surgery offers an effective approach to the evaluation and diagnosis of soft and hard tissue. This is because of the detailed planning of the aesthetic CCL procedure. Such an approach leads to superior aesthetic outcomes in dentistry, contributing to the advancement of aesthetic dentistry through a harmonious blend of art and science.
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  • 文章类型: Case Reports
    法团,粘膜的褶皱,将嘴唇和脸颊连接到肺泡粘膜,牙龈,和下面的骨膜。当系带过度靠近牙龈边缘时,它有可能损害牙龈健康,阻碍斑块控制努力并诱导肌肉压力。系带切除术是用于异常系带附着的常用纠正措施。在最近的一个临床病例中,一名21岁的女性患者因乳头型异常唇系附着和右上和左上中切牙周围过多的牙龈组织而从正畸科转诊至牙周病科。病人接受了全系切除术,牙龈切除术,以及在局部麻醉下进行的牙龈成形术,以使用手术刀解决异常的系带附着和牙龈过度生长。已证明这种方法可在正畸治疗中对表现出增强的系带附着和牙龈过度生长的患者产生最佳效果。在实现止血后,应用牙周包以促进愈合和保护软组织。
    The frenum, a fold of mucous membrane, connects the lip and cheek to the alveolar mucosa, gingiva, and underlying periosteum. When the frenum is positioned excessively near the gingival margin, it has the potential to compromise gingival health, impeding plaque control efforts and inducing muscular stress. A frenectomy is a commonly employed corrective measure for anomalous frenum attachments. In a recent clinical case, a 21-year-old female patient was referred from the Department of Orthodontics to the Department of Periodontics due to a papillary-type aberrant labial frenum attachment and excessive gingival tissue surrounding the upper right and left central incisors. The patient underwent a frenectomy, gingivectomy, and gingivoplasty procedures under local anesthesia to address the abnormal frenum attachment and gingival overgrowth using a scalpel. This approach has been demonstrated to yield optimal outcomes in orthodontic therapy for patients exhibiting elevated frenum attachment and gingival overgrowth. Following the achievement of hemostasis, a periodontal pack was applied to facilitate healing and preserve the soft tissue.
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  • 文章类型: Journal Article
    目的:越来越多的证据表明,在角化粘膜≤2mm的情况下,种植体周围的角化粘膜会增加。然而,最合适的手术技术和增强材料尚未确定。这项系统评价和荟萃分析的目的是评估在开始假体植入物治疗之前,使用游离牙龈移植物(FGG)与异种胶原基质(XCM)增强植入物周围角化粘膜的临床和患者报告的结果。
    方法:搜索电子数据库以确定观察性研究,比较用FGG增强的植入部位与用XCM增强的植入部位。使用Cochrane协作的偏差风险工具评估偏差风险。
    结果:本综述包括6项研究,包括174名参与者。其中,87名参与者有FGG,而其余参与者有XCM。6个月时,与XCM增强相比,FGG增强部位与种植体周围角化粘膜增加宽度变化较小相关(平均差1.06;95%置信区间-0.01~2.13;p=0.05).的区别,然而,是微不足道的。两组在6个月时种植体周围角化粘膜厚度变化的差异有统计学意义,有利于FGG。另一方面,XCM手术时间明显缩短,术后疼痛评分较低,和更高的颜色匹配相比FGG。
    结论:在本综述的范围内,在最终假体放置之前使用FGG增强角化粘膜可能对软组织厚度产生短期积极影响。XCM可能会考虑在美学要求高的植入部位,并且优先考虑患者的舒适度或较短的手术时间。证据支持,然而,具有低至中等的确定性;因此,需要进一步的研究来支持本审查的结果。
    OBJECTIVE: There is a growing evidence to suggest augmenting peri-implant keratinized mucosa in the presence of ≤ 2 mm of keratinized mucosa. However, the most appropriate surgical technique and augmentation materials have yet to be defined. The aim of this systematic review and meta-analyses was to evaluate the clinical and patient-reported outcomes of augmenting keratinized mucosa around implants using free gingival graft (FGG) versus xenogeneic collagen matrix (XCM) before commencing prosthetic implant treatment.
    METHODS: Electronic databases were searched to identify observational studies comparing implant sites augmented with FGG to those augmented with XCM. The risk of bias was assessed using the Cochrane Collaboration\'s Risk of Bias tool.
    RESULTS: Six studies with 174 participants were included in the present review. Of these, 87 participants had FGG, whereas the remaining participants had XCM. At 6 months, sites augmented with FGG were associated with less changes in the gained width of peri-implant keratinized mucosa compared to those augmented with XCM (mean difference 1.06; 95% confidence interval -0.01 to 2.13; p = 0.05). The difference, however, was marginally significant. The difference between the two groups in changes in thickness of peri-implant keratinized mucosa at 6 months was statistically significantly in favor of FGG. On the other hand, XCM had significantly shorter surgical time, lower postoperative pain score, and higher color match compared to FGG.
    CONCLUSIONS: Within the limitation of this review, the augmentation of keratinized mucosa using FGG before the placement of the final prosthesis may have short-term positive effects on soft tissue thickness. XCM might be considered in aesthetically demanding implant sites and where patient comfort or shorter surgical time is a priority. The evidence support, however, is of low to moderate certainty; therefore, further studies are needed to support the findings of the present review.
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  • 文章类型: Journal Article
    牙龈过度显示(EGD)定义为最大微笑时上颌切牙上方超过2毫米的牙龈显示。各种骨骼,牙科,并提出了EGD的软组织病因。这项研究通过遵循PRISMA2020指南的系统评价和荟萃分析,评估了手术(SX)和非手术(NSX)干预措施纠正EGD的有效性和稳定性。OvidMEDLINE的电子搜索,EMBASE,中部,Scopus,WebofScience,和LILACS进行(2010-2023)。结果表示为在1、3、6和12个月随访时使用随机效应模型的牙龈显示的平均变化。在1个月,SX和NSX处理在牙龈显示中产生了相当的平均减少3.50mm(2.13-4.86)和3.43mm(2.67-4.19),分别。然而,六个月后,与SX处理的2.86mm相比,NSX处理显示出0.51mm的减少。SX结果在过去6个月保持稳定,而NSX结局在6个月时部分复发,并在12个月时恢复到基线水平。值得注意的是,在轻度初始EGD的病例中,NSX治疗更有效,而SX治疗在严重病例中显示出更好的结果。为了得出关于治疗结果的更有力的结论,未来需要更严格的初步研究。
    Excessive gingival display (EGD) is defined as more than 2 mm of gingiva display above the maxillary incisors at maximum smile. Various skeletal, dental, and soft tissue etiological factors for EGD have been suggested. This study assessed the effectiveness and stability of surgical (SX) and nonsurgical (NSX) interventions for correction of EGD through a systematic review and meta-analysis following PRISMA 2020 guidelines. An electronic search of Ovid MEDLINE, EMBASE, CENTRAL, Scopus, Web of Science, and LILACS was conducted (2010-2023). Results were expressed as mean change in gingival display using the random-effects model at 1, 3, 6, and 12-month follow-up. At 1 month, SX and NSX treatments yielded a comparable mean reduction of 3.50 mm (2.13-4.86) and 3.43 mm (2.67-4.19) in gingival display, respectively. However, by 6 months, NSX treatments showed a reduction of 0.51 mm compared to 2.86 mm with SX treatments. SX outcomes remained stable past 6 months, while NSX outcomes partially relapsed at 6 months and returned to baseline levels at 12 months. Notably, NSX treatments were more effective in cases with mild initial EGD, while SX treatments showed a better outcome in severe cases. To draw more robust conclusions regarding the treatment outcomes, future primary studies of greater rigor are required.
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  • 文章类型: Journal Article
    背景:这项研究的目的是评估无齿龈移植物(SFGG)和异种胶原基质(XCM)的组合技术在增加周围角化粘膜(KMW)宽度方面的结果。并将其疗效与历史对照组(FGG)进行比较。
    方法:纳入13例植入手术后至少有一处KMW≤2mm的患者,并接受SFGG联合XCM治疗。另外13名具有与先前试验相同的纳入和排除标准的患者单独接受FGG。评估与先前试验相同的结果。KMW,角化粘膜厚度(KMT),在基线测量牙龈指数(GI)和探测深度(PD),2和6个月。术后疼痛,还评估了患者满意度和美学结果.
    结果:手术后6个月,组合技术可达到3.3±1.6mmKMW。与2个月时相比,6个月时在GI或PD中未检测到显着变化(p>0.05)。术后疼痛和患者满意度分别为2.6±1.2和9.5±1.2。美学结果的总分为3.8±1.2。在历史的FGG组中,6个月时报告KMW为4.6±1.6mm,美学结果的总分高于组合技术(4.8±0.7vs.3.8±1.2,p<0.05)。
    结论:SFGG和XCM的组合技术可以增加KMW并维持种植体周围的健康。然而,与单独使用FGG相比,这种组合技术的增强效果和美学效果较差.
    背景:该临床试验于2022年3月15日在中国临床试验注册中心注册,注册号为ChiCTR2200057670。
    BACKGROUND: The aim of this study was to assess the outcomes of the combination technique of strip free gingival grafts (SFGG) and xenogeneic collagen matrix (XCM) in augmenting the width of keratinized mucosa (KMW) around dental implants, and compare its efficacy with the historical control group (FGG).
    METHODS: Thirteen patients with at least one site with KMW ≤ 2 mm after implant surgery were included and received SFGG in combination with XCM. Another thirteen patients with the same inclusion and exclusion criteria from the previous trial received FGG alone. The same outcomes as the previous trial were evaluated. KMW, thickness of keratinized mucosa (KMT), gingival index (GI) and probing depth (PD) were measured at baseline, 2 and 6 months. Postoperative pain, patient satisfaction and aesthetic outcomes were also assessed.
    RESULTS: At 6 months after surgery, the combination technique could attain 3.3 ± 1.6 mm of KMW. No significant change could be detected in GI or PD at 6 months compared to those at 2 months (p > 0.05). The postoperative pain and patient satisfaction in VAS were 2.6 ± 1.2 and 9.5 ± 1.2. The total score of aesthetic outcomes was 3.8 ± 1.2. In the historical FGG group, 4.6 ± 1.6 mm of KMW was reported at 6 months, and the total score of aesthetic outcomes was higher than the combination technique (4.8 ± 0.7 vs. 3.8 ± 1.2, p < 0.05).
    CONCLUSIONS: The combination technique of SFGG and XCM could increase KMW and maintain peri-implant health. However, this combination technique was associated with inferior augmentation and aesthetic outcomes compared with FGG alone.
    BACKGROUND: This clinical trial was registered in the Chinese Clinical Trial Registry with registration number ChiCTR2200057670 on 15/03/2022.
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  • 文章类型: Journal Article
    背景:陶瓷软组织修剪钻(CeraTip™)最初被引入用于牙龈成形术,但最近已用于牙龈脱色。这项研究的目的是比较新型CeraTip™和金标准手术手术刀技术之间的脱色功效。
    方法:八种健康,在两个牙弓中出现中度至重度牙龈色素沉着的非吸烟者被随机分配,其中一个牙弓中的CeraTip™色素沉着作为试验组(TG),而在另一个牙弓中的手术刀色素沉着作为对照组(CG).色素沉着指数用于评估临床表现。治疗时间,疼痛程度,和审美满意度是患者体验的参数。在基线时进行评估,一个星期,一个月,还有三个月.
    结果:在所有评估访问中,用Dummet口腔色素沉着指数(DOPI)表示的色素沉着强度,和色素沉着分布由黑色素指数(MI)表示,两组均显著低于基线(p<0.001)。当比较两组时,手术刀脱色有更好的初始临床结果,而CeraTip™的再色素沉着较少,疼痛评分,治疗时间,和更大的审美满意度。然而,差异无统计学意义。
    结论:两种技术都成功地消除了牙龈色素沉着,具有可比的临床表现。患者首选CeraTip™色素脱失。
    背景:研究方案于2023年9月11日在www上注册。
    结果:经伦理委员会批准后的gov数据库(NCT06031116),牙科学院,艾因沙姆斯大学(FDASU-Rec012124)。
    BACKGROUND: The ceramic soft tissue trimming bur (CeraTip™) was initially introduced for use in gingivoplasty but has recently been used for gingival depigmentation. The aim of this study is to compare the efficacy of depigmentation between the novel CeraTip™ and the gold-standard surgical scalpel technique.
    METHODS: Eight healthy, nonsmokers with moderate to severe gingival hyperpigmentation in both arches were randomly assigned for CeraTip™ depigmentation in one arch as the test group (TG) and scalpel depigmentation in the opposite arch as the control group (CG). Pigmentation indices were used to assess clinical performance. Treatment time, pain level, and esthetic satisfaction were the parameters of patient experience. The assessments were performed at baseline, one week, one month, and three months.
    RESULTS: At all assessment visits, pigmentation intensity represented by the Dummet oral pigmentation index (DOPI), and pigmentation distribution represented by the Hedin melanin index (MI), were significantly lower than those at baseline (p < 0.001) in both groups. When comparing the two groups, Scalpel depigmentation had better initial clinical outcomes, while CeraTip™ had less visible repigmentation, pain scores, treatment time, and greater esthetic satisfaction. However, none of the differences were statistically significant.
    CONCLUSIONS: Both techniques successfully removed gingival hyperpigmentation with comparable clinical performance. The patients preferred CeraTip™ depigmentation.
    BACKGROUND: The study protocol was registered on 11/09/2023 on the www.
    RESULTS: gov database (NCT06031116) after the approval of the Ethics Committee, Faculty of Dentistry, Ain Shams University (FDASU-Rec012124).
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  • 文章类型: Journal Article
    目的:本研究旨在比较传统和数字牙冠延伸指南在前牙美学修复中的临床效果。此外,这项研究将分析各种数字牙冠延伸指南在前牙美学修复中的结果差异。
    方法:选择需要对前牙进行美学修复的62例患者进行本研究。患者共230颗前牙,随机分为三组:对照组22例,接受压力膜诊断蜡,实验组1为20例接受3D打印数字模型和压力膜的患者,和接受数字双定位指南的20名患者中的实验组2。对照组共84颗前牙,实验组1有72颗前牙,实验组2有74颗前牙。该研究比较了三种制造牙冠延伸导向器的方法:对照组使用诊断蜡加压缩膜方法,而实验组1在3D打印模型上使用压缩膜,实验组2使用3D打印数字双定位牙冠延伸指南。在牙冠延长手术后,对照组患者使用DMG树脂临时冠材料进行牙龈轮廓整理,而实验组患者佩戴3D打印树脂临时冠的目的相同。患者佩戴临时冠1个月后在门诊随访,3个月,6个月,分别。临床结果根据边缘拟合进行评估,红色审美指数,和白色审美指数。
    结果:根据统计分析,与对照组相比,实验组需要的随访次数显著减少,指南设计和制作时间显著减少.此外,实验组手术时间明显短于对照组。在术后第1个月和第3个月之间,边缘牙龈水平的PES指数得分,近端,实验组远端中远端的牙龈乳头显示出优于对照组的趋势。到了第六个月,边缘牙龈水平在实验组和对照组之间表现出显著差异。实验组在形状方面表现出优于对照组的结果,轮廓,和牙齿的体积,颜色,表面纹理,以及修复的透明度,以及术后第1个月和第3个月的特征。第六个月,比较结果表明,实验组在形状方面继续表现出优于对照组的结果,颜色,表面纹理,以及修复的透明度,以及牙齿的特征。此外,实验组在1个月时表现出明显少于对照组的牙龈改变,3个月,术后6个月,这种差异具有统计学意义。此外,利用了3D打印技术和修复技术的结合,产生一致的患者满意度。
    结论:数字化在前牙美学修复中起着重要作用。运用数字化技术对前牙美容修复的全过程进行管理,可以提高修复效果,减少后续任命的数量,缩短咨询时间,达到更好的患者满意度。
    OBJECTIVE: this study aims to compare the clinical outcomes of traditional and digital crown extension guides in the aesthetic restoration of anterior teeth. Additionally, the study will analyze the differences in the results of various digital crown extension guides in anterior aesthetic restorations.
    METHODS: Sixty-two patients who required aesthetic restoration of their anterior teeth were selected for this study. The patients had a total of 230 anterior teeth and were randomly divided into three groups: a control group of 22 cases who received diagnostic wax-up with pressure film, an experimental group 1 of 20 cases who received 3D printed digital models with pressure film, and an experimental group 2 of 20 patients who received digital dual-positioning guides. The control group had a total of 84 anterior teeth, experimental group 1 had 72 anterior teeth, and experimental group 2 had 74 anterior teeth. The study compared three methods for fabricating crown extension guides: the control group used the diagnostic wax-up plus compression film method, while experimental group 1 used compression film on 3D printed models and experimental group 2 used 3D printed digital dual-positioning crown extension guides. After the crown lengthening surgery, the control group patients wore DMG resin temporary crown material for gingival contouring, while the experimental group patients wore 3D printed resin temporary crowns for the same purpose. The patients were followed up in the outpatient clinic after wearing temporary crowns for 1 month, 3 months, and 6 months, respectively. The clinical results were evaluated in terms of marginal fit, red aesthetic index, and white aesthetic index.
    RESULTS: Based on the statistical analysis, the experimental group required significantly fewer follow-up visits and less time for guide design and fabrication compared to the control group. Additionally, the surgical time for the experimental group was significantly shorter than that of the control group. During the postoperative period between the 1st and 3rd month, the PES index scores for the marginal gingival level, proximal, and distal mesiodistal gingival papillae of the experimental group showed a trend of superiority over those of the control group. By the 6th month, the marginal gingival level exhibited a significant difference between the experimental and control groups. The experimental group demonstrated superior results to the control group in terms of shape, contour, and volume of the teeth, color, surface texture, and transparency of the restorations, and features during the 1st and 3rd postoperative months. In the 6th month, the comparative results indicated that the experimental group continued to exhibit superior outcomes to the control group in terms of the shape, color, surface texture, and transparency of the restorations, as well as the characteristics of the teeth. Additionally, the experimental group demonstrated significantly fewer gingival alterations than the control group at 1 month, 3 months, and 6 months post-procedure, with this difference being statistically significant. Furthermore, the combination of 3D printing technology and restorative techniques was utilized, resulting in consistent patient satisfaction.
    CONCLUSIONS: Digitalisation plays an important role in anterior aesthetic restorations. The use of digital technology to manage the entire process of anterior cosmetic restorations can improve restorative results, reduce the number of follow-up appointments, shorten consultation time, and achieve better patient satisfaction.
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