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1.
Artículo en Inglés | MEDLINE | ID: mdl-33528445

RESUMEN

Vertical bone augmentation (VBA) procedures for dental implant placement are biologically and technically challenging. Systematic reviews and meta-analyses of studies on VBA have failed to identify clinical procedures that provide superior results for treatment of the vertical ridge deficiencies. A decision tree was developed to guide clinicians on selecting treatment options based on reported vertical bone gains (< 5 mm, 5 to 8 mm, > 8 mm). The choice of a particular augmentation technique will also depend on other factors, including the size and morphology of the defect, location, and clinician or patient preferences. Surgeons should consider the advantages and disadvantages of each option for the clinical situation and select an approach with low complications, low cost, and the highest likelihood of success.


Asunto(s)
Pérdida de Hueso Alveolar , Aumento de la Cresta Alveolar , Implantes Dentales , Pérdida de Hueso Alveolar/cirugía , Trasplante Óseo , Árboles de Decisión , Implantación Dental Endoósea , Humanos
2.
Artículo en Inglés | MEDLINE | ID: mdl-33528453

RESUMEN

In everyday practice, surgeons have to deal with bone atrophy. These rehabilitations are even more complex in the posterior mandible, and it is still unclear in the literature which fixed rehabilitation option is best. The purpose of this article was to help oral surgeons to choose the proper and updated treatment for their atrophic patients. Posterior mandible bone atrophies were divided into four main groups depending on the bone height measured above the inferior alveolar nerve: (1) ≤ 4 mm; (2) > 4 mm ≤ 5 mm; (3) > 5 mm ≤ 6 mm; (4) > 6 mm < 7 mm. Different approaches were proposed for each group, considering patient expectations. If ≤ 4 mm of bone height was available, guided bone regeneration was used as the adequate approach. For bone heights > 4 mm and ≤ 6 mm, the "sandwich" technique and/or short implants were used, depending on esthetics. In cases with > 6 mm and < 7 mm above the mandibular canal, short implants might be the proper option. The authors' clinical experience and the literature were considered in order to suggest a possible correct treatment decision based on the residual bone height in the posterior mandible.


Asunto(s)
Aumento de la Cresta Alveolar , Implantes Dentales , Atrofia/patología , Implantación Dental Endoósea , Prótesis Dental de Soporte Implantado , Humanos , Mandíbula/diagnóstico por imagen , Mandíbula/patología , Mandíbula/cirugía , Resultado del Tratamiento
3.
Int J Oral Maxillofac Implants ; 36(1): 30-37, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33600520

RESUMEN

PURPOSE: This study aimed to assess the survival rate, marginal bone levels, and prosthetic success of short implants when placed in posterior areas of severely reabsorbed mandibles. MATERIALS AND METHODS: A systematic review was performed of all randomized controlled trials with at least 10 patients with a control group where bone augmentations were performed that were published between January 2015 and February 2020. From 77 pertinent studies, 14 full-text publications were studied, and 6 studies fulfilled the inclusion criteria. RESULTS: The implant survival rates of short dental implants ranged from 92% to 96.9% with a follow-up from 1 to 5 years, and the prosthetic success rate ranged from 90% to 100% during the same follow-up. The mean marginal bone level values of involved short implants ranged from -0.51 to -2.30 mm. CONCLUSION: The obtained data showed that short dental implants are a valid therapeutic choice to rehabilitate severe mandibular atrophy in the medium to long term.


Asunto(s)
Aumento de la Cresta Alveolar , Implantes Dentales , Atrofia/patología , Implantación Dental Endoósea , Diseño de Prótesis Dental , Prótesis Dental de Soporte Implantado , Fracaso de la Restauración Dental , Humanos , Mandíbula/patología , Mandíbula/cirugía , Resultado del Tratamiento
4.
Int J Oral Maxillofac Implants ; 36(1): 122-25, 2021.
Artículo en Inglés | MEDLINE | ID: mdl-33600532

RESUMEN

PURPOSE: The aim of this retrospective study was to determine if penicillin allergy and/or clindamycin therapy may contribute to a higher incidence of postsurgical infections after bone augmentation. MATERIALS AND METHODS: This retrospective study analyzed patients between 2014 and 2019 who received bone augmentation procedures (socket grafting [SG]; ridge augmentation [RA]) prior to placement of dental implants. All the grafting procedures were performed under preoperative and postoperative oral antibiotic coverage with either amoxicillin or clindamycin for patients who reported penicillin allergy. Infections associated with the bone augmentation procedures were recorded. RESULTS: In this study, 1,814 patients received 2,961 bone augmentation procedures (2,530 SG, 431 RA). In the 2,530 SG procedures, 270 (10.7%) were associated with a penicillin allergy. Infections occurred in 91 of the 2,530 SG sites (3.6%). However, the infection rate was 10.7% (29 SG sites) for clindamycin and only 2.7% (62 SG sites) for amoxicillin (P < .02). In the 431 RA procedures, 71 (16.5%) were associated with a penicillin allergy. Overall infections occurred in 31 of the 431 sites (7.2%). However, the infection rate was 22.5% (16 RA sites) for clindamycin and only 4.2% for amoxicillin (15 RA sites; P < .01). Penicillin-allergic patients taking clindamycin demonstrated a higher risk of infection with a risk ratio of 6.9 (95% CI) and 4.5 (95% CI) compared with nonallergic patients taking amoxicillin for RA and SG, respectively. CONCLUSION: Penicillin allergy and the use of clindamycin following SG and RA procedures was associated with a higher rate of infection and may be a risk factor for bone augmentation complications.


Asunto(s)
Aumento de la Cresta Alveolar , Implantes Dentales , Antibacterianos/efectos adversos , Profilaxis Antibiótica , Clindamicina/efectos adversos , Implantación Dental Endoósea , Humanos , Penicilinas/efectos adversos , Estudios Retrospectivos
5.
Int J Oral Sci ; 12(1): 37, 2020 12 30.
Artículo en Inglés | MEDLINE | ID: mdl-33380722

RESUMEN

Guided bone regeneration (GBR) is an effective and simple method for bone augmentation, which is often used to reconstruct the alveolar ridge when the bone defect occurs in the implant area. Titanium mesh has expanded the indications of GBR technology due to its excellent mechanical properties and biocompatibility, so that the GBR technology can be used to repair alveolar ridges with larger bone defects, and can obtain excellent and stable bone augmentation results. Currently, GBR with titanium mesh has various clinical applications, including different clinical procedures. Bone graft materials, titanium mesh covering methods, and titanium mesh fixing methods are also optional. Moreover, the research of GBR with titanium mesh has led to multifarious progresses in digitalization and material modification. This article reviews the properties of titanium mesh and the difference of titanium mesh with other barrier membranes; the current clinical application of titanium mesh in bone augmentation; common complications and management and prevention methods in the application of titanium mesh; and research progress of titanium mesh in digitization and material modification. Hoping to provide a reference for further improvement of titanium mesh in clinical application and related research of titanium mesh.


Asunto(s)
Aumento de la Cresta Alveolar , Regeneración Ósea , Trasplante Óseo , Implantación Dental Endoósea , Mallas Quirúrgicas , Titanio
6.
Niger J Clin Pract ; 23(12): 1767-1771, 2020 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-33355833

RESUMEN

Alveolar bone loss subsequent to long-term edentulism and trauma may be severe and treatment plan is always an esthetic and functional challenge. Implant supported hybrid prosthesis is widely regarded as an effective treatment option for patients with excessive and irregular bone loss. However, implant placement is occasionally impossible without surgical procedures in such cases. This case report presents rehabilitation of 19-year-old maxillary anterior edentulous male patient with maxillary anterior bone defect and excessive cross-bite anterior closure with multidisciplinary approach. The patient was rehabilitated with implant supported hybrid prosthesis with Malo Bridge design following autogeneous iliac bone augmentation, teeth leveling with orthodontic treatment, and surgical placement of three implants. Esthetics, pleasing phonetics and function were achieved as desired with this treatment option and no complications were observed.


Asunto(s)
Pérdida de Hueso Alveolar , Aumento de la Cresta Alveolar , Implantes Dentales , Arcada Edéntula , Procedimientos Quirúrgicos Reconstructivos , Adulto , Pérdida de Hueso Alveolar/cirugía , Trasplante Óseo , Prótesis Dental de Soporte Implantado , Humanos , Arcada Edéntula/cirugía , Masculino , Maxilar/cirugía , Resultado del Tratamiento , Adulto Joven
7.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 55(11): 803-808, 2020 Nov 09.
Artículo en Chino | MEDLINE | ID: mdl-33171550

RESUMEN

Oral implantology has experienced more than half a century of development, the theoretical foundation and clinical technology are becoming more mature. This article elaborates on the establishment of implant timing, implant-related bone augmentation technology, surgical alternatives to bone augmentation technology, implant-related soft tissue augmentation technology, and computer-guided surgery. Provide a reference for a comprehensive understanding of dental implant surgery technology and its new developments.


Asunto(s)
Aumento de la Cresta Alveolar , Implantes Dentales , Implantación Dental Endoósea
8.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 55(11): 838-844, 2020 Nov 09.
Artículo en Chino | MEDLINE | ID: mdl-33171556

RESUMEN

Objective: To evaluate the efficacy and long-term outcome of the bilaminar cortical wall building grafting technique for reconstruction of vertical and horizontal alveolar ridge defects in the esthetic zone. Methods: The retrospective study was conducted between January, 2007 and December, 2015. The sample was composed of 24 patients who received bilaminar cortical wall building augmentation in the esthetic zone in Department of Fourth Clinical Division, Peking University School of Stomatology. The 24 patients (11 female and 13 male) had age of (37.8±13.4) years (20-54 years). A bone block harvested from the lateral aspect of the mandibular ramus was bisected into two cortical laminae, which were then used to reconstruct the buccal and palatal walls of an alveolar ridge defect. The inter-laminar space was filled with particulate autogenous bone and the whole graft was covered with anorganic bone graft and collagen membrane. Bone width and vertical measurements were measured at the time of surgery and reentry surgery. Integration of the graft, implant survival rates and complications were recorded. Results: Overall, 24 patients with 35 sites who were included were followed for (7.1±1.9) years. Graft integration (24/24) and implant survival rates (35/35) were determined as 100%. The average horizontal and vertical bone gain was (6.47±2.46) and (5.01±1.12) mm with resorption rates of 9.0% and 10.9%, respectively. One patient showed soft-tissue dehiscence with peri-implant mucositis were observed 9 years after surgery. More than 1.5 mm of buccal bone plate were observed using cone beam computed tomography. Conclusions: This technique was effective and reliable for three-dimensional reconstruction of severely atrophic alveolar ridges in anterior maxillae. Autogenous graft combined with coverage by allogeneic bone graft and collagen membrane provided successful augmentation with low bone resorption.


Asunto(s)
Aumento de la Cresta Alveolar , Maxilar , Proceso Alveolar , Trasplante Óseo , Implantación Dental Endoósea , Estética Dental , Femenino , Humanos , Masculino , Maxilar/cirugía , Estudios Retrospectivos
9.
Zhonghua Kou Qiang Yi Xue Za Zhi ; 55(11): 878-884, 2020 Nov 09.
Artículo en Chino | MEDLINE | ID: mdl-33171562

RESUMEN

Objective: To evaluate the clinical effect of three-dimensional (3D) printing individualized titanium mesh for ridge augmentation in the esthetic zone. Methods: Forty-three patients were treated with personalized titanium mesh bone augmentation from Department of Oral Implantology, Stomatological Hospital of Chongqing Medical University from January, 2018 to June, 2020. According to the preoperative cone-beam CT (CBCT) data, the 43 patients [male: 21, female: 22, aged (30.1±5.8) years] were divided into three groups according to the Seibert classification as horizontal, vertical and horizontal-vertical classes (sample size: 14, 15, 14). Then, comprehensively the bone mass and esthetic requirements were taken into account to design and accordingly fabricate the 3D printing individualized titanium mesh. During the surgical process, autologous bone and xenogeneic bone substitutes were mixed at a 1∶1 ratio, combined with injectable platelet-rich fibrin (i-PRF) and individualized titanium mesh for ridge augmentation. All patients were recalled at 1, 3, and 6 months post-operation to observe the mesh exposure; the clinical effect of ridge augmentation was evaluated 6 months post-operation. After the implant placement and final restoration, the pink esthetic score (PES)/white esthetic score (WES) were evaluated. Results: Only one patient experienced early mesh exposure, and no obvious infection was observed. The bone gain regarding three types of bone defects was significantly higher immediately post-operation compared to pre-operation (horizontal, vertical and horizontal-vertical bone defect measured as (3.27±0.13), (17.41±0.46), (3.76±0.24), (14.37±0.89) mm pre-operation, respectively; and (5.25±0.15), (26.10±0.55), (6.35±0.29), (22.52±0.90) mm immediately post-operation, P<0.01). There was no obvious bone resorption 6 months post-operation [outcomes for horizontal, vertical and horizontal-vertical bone defect measured as (5.14±0.14), (25.67±0.52), (6.13±0.26), (22.35±0.89) mm, P>0.05]. The PES/WES scores of all patients were interpreted as "excellent". Conclusions: The 3D printing individualized titanium mesh is effective in repairing bone defects in the esthetic zone, and produces credible esthetic outcomes after implantation and final restoration.


Asunto(s)
Aumento de la Cresta Alveolar , Implantes Dentales , Adulto , Regeneración Ósea , Trasplante Óseo , Implantación Dental Endoósea , Estética , Femenino , Humanos , Masculino , Impresión Tridimensional , Mallas Quirúrgicas , Titanio , Adulto Joven
10.
Artículo en Inglés | MEDLINE | ID: mdl-33151186

RESUMEN

This study presents the histomorphometric results of the Wafer Technique, which is based on guided bone regeneration and onlay grafts for 3D bone augmentation. This two-stage technique utilizes autogenous cortical bone plates and collagen membranes, forming a barrier containing a mixture of deproteinized bovine bone matrix, autologous blood, and bone grafted from intraoral sites. Twelve patients were treated. At 6 months postsurgery, histologic analysis of the regenerated areas revealed the presence of compact newly formed bone with no sign of inflammation. The percentages of new bone and native bone (mineralized tissue) were 16.4% (95% CI: 9.5% to 23.2%) and 42.6% (95% CI: 28.2% to 57.0%), respectively. Twenty-five implants were placed. The procedure has been proven to be safe and reliable, and only one transient complication was observed.


Asunto(s)
Aumento de la Cresta Alveolar , Sustitutos de Huesos , Implantes Dentales , Animales , Regeneración Ósea , Trasplante Óseo , Bovinos , Implantación Dental Endoósea , Regeneración Tisular Guiada Periodontal , Humanos , Membranas Artificiales
11.
Artículo en Inglés | MEDLINE | ID: mdl-33151194

RESUMEN

A variety of surgical techniques and grafting materials for the purpose of ridge augmentation have been developed during the last three decades. Recently, the use of customized allogeneic bone blocks, prepared by CAD/CAM techniques, has been introduced. This new augmentation technology may significantly reduce surgical time and improve donor-recipient fit and adaptation. However, promising clinical and histologic results have been published in only a few short-term case reports. The 3-year follow-ups of these two case reports may provide more clinical data on the use of the customized bone blocks for horizontal and vertical ridge augmentation in the posterior mandible.


Asunto(s)
Aumento de la Cresta Alveolar , Trasplante de Células Madre Hematopoyéticas , Trasplante Óseo , Implantación Dental Endoósea , Estudios de Seguimiento , Mandíbula/cirugía
12.
Int J Periodontics Restorative Dent ; 40(6): e235-e240, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33151196

RESUMEN

This case report describes the rehabilitation of an extremely atrophic posterior mandible using 4-mm ultrashort implants and reports clinical and radiographic outcomes 7 years after loading. The patient refused to undergo any other treatment, from the removable prosthesis to the reconstructive surgery, and asked for a fixed, minimally invasive solution in the shortest possible time. The residual bone height above the alveolar nerve was an average of about 5 mm, so it was decided to treat the patient with four 4-mm ultrashort implants. Within the limitations of this case report, this procedure appears successful at 7 years after loading in this specific case and could reduce invasiveness, rehabilitative times, and costs. However, longer follow-ups on a large number of patients coming from randomized controlled clinical trials are necessary before making more reliable recommendations.


Asunto(s)
Pérdida de Hueso Alveolar , Aumento de la Cresta Alveolar , Implantes Dentales , Pérdida de Hueso Alveolar/cirugía , Implantación Dental Endoósea , Diseño de Prótesis Dental , Prótesis Dental de Soporte Implantado , Fracaso de la Restauración Dental , Estudios de Seguimiento , Humanos , Mandíbula/diagnóstico por imagen , Mandíbula/cirugía , Resultado del Tratamiento
13.
Int J Esthet Dent ; 15(4): 440-453, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33089259

RESUMEN

Soft tissue augmentation techniques have become crucial to improve tissue volume and quality in periodontal and peri-implant dental surgery. A clinician's knowledge of the principle of flap design and management is a key aspect for treatment success, particularly in the esthetic area. Implant failures in the esthetic area are one of the most challenging situations in modern dentistry, and often cases have to be resolved through multidisciplinary treatments in which soft tissue management and patient selection are substantial aspects. Ridge defects are commonly treated with bone regeneration-like techniques in order to place implants. However, in young patients, where implant treatment should be carefully selected, fixed prosthetic restorations in combination with mucogingival surgery could be a successful option to enhance esthetics. The present case report describes a treatment approach for implant failure in the esthetic area in young patients, consisting of a combination of connective tissue platform technique, resective surgery, and a Maryland bridge restoration.


Asunto(s)
Aumento de la Cresta Alveolar , Estética Dental , Tejido Conectivo/trasplante , Implantación Dental Endoósea , Humanos , Colgajos Quirúrgicos/cirugía
14.
Int J Esthet Dent ; 15(4): 454-473, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-33089260

RESUMEN

Ridge defects are a very common finding after tooth extraction. Recent literature has shown that the pattern of bone and soft tissue remodeling can obtain up to 50% of the original volume. Many different surgical approaches have been proposed over the years to correct ridge defects, but the results have often been inconsistent or difficult to reproduce on a daily basis. For some time, surgeons have relied on the guided bone regeneration (GBR) technique, taking advantage of a barrier membrane to protect the blood clot, combined with different combinations of autogenous bone and bone grafts from various sources. If some kind of understanding has been reached and certain guidelines adopted for the treatment of horizontal defects, those for tridimensional and vertical defects still present a challenge. About a decade ago, a new biomaterial became available on the market - a membrane made of collagenated porcine bone called cortical lamina - which proved to be reliable and easy to handle for both horizontal and vertical defects. The aim of this article is to review the current literature on the topic and to discuss the material in its three forms through the presentation of three patient cases of differing complexity, each with its unique indications and characteristics.


Asunto(s)
Aumento de la Cresta Alveolar , Animales , Regeneración Ósea , Trasplante Óseo , Implantación Dental Endoósea , Regeneración Tisular Guiada Periodontal , Humanos , Porcinos
16.
Oral Maxillofac Surg Clin North Am ; 32(4): 593-609, 2020 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-33004150

RESUMEN

Extensive reviews have concluded that grafting of the socket reduces bone loss regardless of product or method. However, nothing has been shown to reliably and completely maintain alveolar dimensions. We advocate a biologically driven and anatomically based approach for reconstruction of the socket. There are various socket manipulations that we have found to predictably prepare a site for dental implant. The combination of graft construct design and socket management maximizes graft success for any practitioner. Each socket should be treated individually, and products or methods used that are coincident with the complexity of the defect in question.


Asunto(s)
Aumento de la Cresta Alveolar , Alveolo Dental/cirugía , Humanos , Extracción Dental
17.
Artículo en Inglés | MEDLINE | ID: mdl-32926004

RESUMEN

One standard approach for wound closure after ridge augmentation is coronal flap advancement. Coronal flap advancement results in displacement of the mucogingival junction and reduction of the vestibulum. In the maxilla, a buccal sliding palatal flap can be applied for primary wound closure after ridge augmentation. The dissected part of the palatal connective tissue is left exposed, thus eliminating or reducing the amount of the coronal flap advancement respectively and increasing the amount of keratinized gingiva. In combination with guided soft tissue augmentation, this flap design enables a three-dimensional peri-implant soft tissue augmentation.


Asunto(s)
Aumento de la Cresta Alveolar , Implantación Dental Endoósea , Encía , Maxilar/cirugía , Paladar (Hueso)/cirugía , Colgajos Quirúrgicos/cirugía
18.
Int J Oral Maxillofac Implants ; 35(5): 924-930, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32991642

RESUMEN

PURPOSE: The purpose of this retrospective computed tomography study was to evaluate bone availability for dental implant placement, frequency of bone augmentation procedures, frequency of anatomical structures that compromise implant placement, and frequency of implant dimensions, and to determine which edentulous sites would benefit from the use of a sloped implant versus a traditional flat design. MATERIALS AND METHODS: Recorded parameters included the width of the ridge, the buccal and lingual/palatal alveolar bone height in reference to different anatomical landmarks, determination of implant placement, selection of an implant with a flat or sloped top, and need for a secondary bone augmentation procedure. RESULTS: One thousand three hundred seventy edentulous sites were evaluated in 216 patients. Implants could be placed in 60.6% of the total sites, where the coronal portion would be sloped in 59% of sites and conventionally flat in 41%; 39.4% of sites were not adequate for implant placement, where 56.5% needed additional guided bone regeneration procedures and 43.5% required sinus augmentation procedures. The inferior alveolar canal was the most frequent anatomical structure limiting size and/or placement. CONCLUSION: The study indicates that implants can be placed in slightly over half of edentulous sites without a secondary grafting procedure. The possibility of dental implant placement varied according to the volume and morphology of alveolar bone and related anatomical structures. This decreased from anterior to posterior in both arches. The sloped implant design was beneficial. In addition, the sloped implant design resulted in the placement of a longer implant.


Asunto(s)
Aumento de la Cresta Alveolar , Implantes Dentales , Boca Edéntula , Implantación Dental Endoósea , Humanos , Estudios Retrospectivos
19.
Int J Oral Maxillofac Implants ; 35(5): e77-e85, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32991654

RESUMEN

Resorbable membranes are well described and employed for horizontal guided bone regeneration (GBR). However, the currently available literature does not provide information on the bone volumetric changes during the healing that follows GBR procedures and dental implant placement. Therefore, the aim of this pilot study was to initially analyze the volumetric bone changes after treating pristine edentulous mandibular defects with lateral GBR using freeze-dried bone allograft (FDBA) and collagen resorbable membrane. Six patients were selected for the analysis. Clinical changes in bone volume before and after GBR were measured. In addition, digital volumetric analysis of the augmented ridges was performed preoperatively, as well as 4 and 6 months after the GBR procedure. At the time of dental implant placement, bone cores were collected during the osteotomy for histologic analysis. Data on volume changes showed a mean of 297.5 ± 134 mm3 augmented bone volume at 4 months with 5% ± 3.78% resorption from 4 to ≥ 6 months. Histologic bone core analysis showed 44.9% plusmn; 5.1% mineralization in the area of augmentation. Within the limitations of this pilot study, resorbable membranes exhibited reliability for GBR in intercalated mandibular defects, providing sufficient bone volume gain at ≥ 6 months for implant stabilization and limited resorption during graft healing.


Asunto(s)
Aumento de la Cresta Alveolar , Regeneración Ósea , Trasplante Óseo , Humanos , Proyectos Piloto , Reproducibilidad de los Resultados
20.
Clin Oral Implants Res ; 31(10): 1010-1024, 2020 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-32799365

RESUMEN

OBJECTIVES: The objective of this randomized controlled trial was to compare alveolar ridge preservation using a bone substitute material and covered with a synthetic or porcine collagen membrane. MATERIALS AND METHODS: Thirty-two sockets in the aesthetic maxillary region of 30 patients were randomized into two groups. Randomization was stratified according to bone wall defect. Flapless technique was used, and sockets were grafted with bi-phasic calcium phosphate particulate bone substitute and covered by synthetic polyethylene glycol (PEG; test group) or porcine-derived collagen membrane (CM; control group). No primary closure was attempted. A cone beam computed tomography (CBCT) scan was performed immediately after the surgical procedure and repeated 22 weeks later. OnDemand3D was used to superimpose scan images and assess changes. The mean vertical and horizontal percentage bone loss were calculated and implants placed after 6 months with or without additional augmentation. RESULTS: There were no baseline differences between groups or dropouts. The mean percentage loss at the labial plate and at the coronal part of the sockets was statistically significantly lower in the test group compared with controls (-2.86% [SD = 13.48] versus 7.42% [SD = 11.95]; 13.45% [SD = 11.97] versus 28.59% [SD = 16.97]). Implants were placed after 6 months, and there was no difference in need for further augmentation between PEG (n = 5) or CM (n = 4). CONCLUSION: Sites treated with PEG membrane showed less percentage loss in horizontal and vertical measurements in this trial.


Asunto(s)
Pérdida de Hueso Alveolar , Aumento de la Cresta Alveolar , Pérdida de Hueso Alveolar/diagnóstico por imagen , Pérdida de Hueso Alveolar/prevención & control , Pérdida de Hueso Alveolar/cirugía , Animales , Colágeno , Tomografía Computarizada de Haz Cónico , Estética Dental , Humanos , Maxilar/diagnóstico por imagen , Maxilar/cirugía , Porcinos , Extracción Dental , Alveolo Dental/diagnóstico por imagen , Alveolo Dental/cirugía
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