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Dental connective tissue grafting

Renzo G Bassetti, Alexandra Stähli, Mario A Bassetti, Anton Sculean
OBJECTIVES: The aim was to compile the current knowledge about the efficacy of different soft tissue correction methods around osseointegrated, already uncovered and/or loaded (OU/L) implants with insufficient soft tissue conditions. Procedures to increase peri-implant keratinized mucosa (KM) width and/or soft tissue volume were considered. MATERIALS AND METHODS: Screening of two databases: MEDLINE (PubMed) and EMBASE (OVID), and manual search of articles were performed...
November 21, 2016: Clinical Oral Investigations
Stefan P Bienz, Irena Sailer, Ignacio Sanz-Martin, Ronald E Jung, Christoph H F Hämmerle, Daniel S Thoma
OBJECTIVE: to evaluate volumetric changes of soft tissues at pontic sites in patients treated with or without soft tissue grafting over an observation period of 10 years. MATERIALS AND METHODS: A total of 17 patients receiving a tooth-borne fixed dental prosthesis (FDP) were enrolled in this study. Nine patients received a subepithelial connective tissue graft at the pontic site (test). Eight patients continued without soft tissue grafting (control). Baseline impressions were taken after delivery of the final FDP and at 10 years...
November 17, 2016: Journal of Clinical Periodontology
Daisuke Ueno, Jayanetti Asiri Jayawardena, Takashi Kurokawa
Soft tissue dehiscence around dental implant has frequently been observed and it may lead to poor oral hygiene, especially around crowns that exhibit contours with prominent convexity. The present case demonstrates a peri-implant mucosal dehiscence coverage with modified semilunar coronary positioned flap (CPF) in #15 and 16. A semilunar partial-thickness incision was performed 7-10 mm apical from the facial gingival margin. Then, intrasulcular partial-thickness incision was tunneled to the semilunar incision...
December 2015: Int J Implant Dent
Paul P Lin, Lewis Claman, Hua-Hong Chien
The success of dental implant therapy in the esthetic zone requires not only functional osseointegration but also favorable esthetic results. The greatest challenge in the esthetic zone is to establish harmony, balance, and continuity of gingival form between implant restorations and the adjacent natural teeth. In the esthetic zone, a localized ridge defect or loss of a peri-implant papilla is common and can be corrected via soft tissue augmentation. This case report describes a novel surgical technique using connective tissue grafts via an apical pouch to increase soft tissue volume over an alveolar ridge defect or around natural teeth or implants in the maxillary anterior area...
November 2016: International Journal of Periodontics & Restorative Dentistry
Luca Ferrantino, Dieter Bosshardt, Myron Nevins, Giacomo Santoro, Massimo Simion, David Kim
Reducing the need for a connective tissue graft by using an efficacious biomaterial is an important task for dental professionals and patients. This experimental study aimed to test the soft tissue response to a volume-stable new collagen matrix. The device demonstrated good stability during six different time points ranging from 0 to 90 days of healing with no alteration of the wound-healing processes. The 90-day histologic specimen demonstrates eventual replacement of most of the matrix with new connective tissue fibers...
November 2016: International Journal of Periodontics & Restorative Dentistry
Daniel S Thoma, Nadja Naenni, Goran I Benic, Christoph H F Hämmerle, Ronald E Jung
AIM: To test whether or not soft tissue augmentation with a collagen matrix (VCMX) leads to a similar increase in ridge width around dental implants compared to the use of an autogenous subepithelial connective tissue graft (SCTG). MATERIALS AND METHODS: In 12 dogs, immediate dental implants were placed with simultaneous guided bone regeneration. Three months later, soft tissue volume augmentation was performed by randomly allocating three treatment modalities to these sites (VCMX, SCTG, sham-operated group (control))...
October 7, 2016: Journal of Clinical Periodontology
Aditya B Patel, Debora C Matthews, Edmond Ghiabi
OBJECTIVE: To document the profile of periodontists in private practice in Canada in terms of services provided and referral patterns. METHODS: An online survey consisted on 45 questions in 3 categories: demographics, referral patterns and periodontal procedures performed. The sampling frame consisted of all active members of the Canadian Academy of Periodontology (n= 280). Letters and email containing links to the online survey were used to invite participants and to send reminders to non-respondents on days 7, 21 and 49...
March 2016: Journal—Canadian Dental Association, Journal de L'Association Dentaire Canadienne
A Baj, G Trapella, D Lauritano, V Candotto, G E Mancini, A B Giannì
Long-term success rate of implants inserted in atrophic maxilla is ensured through sufficient bone volume in edentulous sites. Reconstructive surgery is necessary before implant placement to regenerate bone defects caused by atrophy, dental trauma, extractions or periodontal disease. Success rate of implants is related to the correct position and angulation of implants in residual crest, so that height and thickness of bone augmentation can allow predictable results. The most popular surgical procedures to obtain bone augmentation are: bone grafts, guided bone regeneration, maxillary sinus floor elevation, and bone osteogenesis distraction...
April 2016: Journal of Biological Regulators and Homeostatic Agents
Jonas Lorenz, Maximilian Blume, Mike Barbeck, Anna Teiler, C James Kirkpatrick, Robert A Sader, Shahram Ghanaati
OBJECTIVES: Attached peri-implant gingiva has proven to have an influence on the long-term stability of dental implants. In patients with head and neck cancer, a functional peri-implant gingiva is even more of critical importance. The aim of the presented prospective study was to investigate a three-dimensional xenogeneic collagen matrix for augmentation around dental implants in patients with former head and neck cancer. MATERIAL AND METHODS: Eight patients presenting with insufficient peri-implant gingiva underwent vestibuloplasty on 51 implants using a xenogeneic collagen matrix...
June 16, 2016: Clinical Oral Investigations
Bach Le, Ali Borzabadi-Farahani, Brady Nielsen
PURPOSE: Soft tissue augmentation procedures are often performed to correct gingival recession on the facial aspects of implants in the esthetic zone. This retrospective clinical case series reports on the use of guided bone regeneration (GBR) and a coronal advancement flap with a resorbable membrane and allograft. MATERIALS AND METHODS: We analyzed the records of 14 patients (7 men and 7 women) with a mean age of 36.78 years (SD, 13.9 years) who were treated for soft tissue recessions around implant-supported restorations in the maxillary central or lateral incisor location...
August 2016: Journal of Oral and Maxillofacial Surgery
Jeremiah Whetman, Brian L Mealey
BACKGROUND: Clinicians and patients continually search for procedures to decrease time from tooth extraction to restoration. Evidence to date is limited concerning timing of ridge preservation healing and reentry for implant placement. The first objective of this study is to histologically evaluate new bone formation 8 to 10 weeks versus 18 to 20 weeks after extraction of non-molar teeth and ridge preservation using demineralized freeze-dried bone allograft (DFDBA). The second objective is to compare dimensional changes including ridge width and height at the two healing time points...
September 2016: Journal of Periodontology
E Velasco-Ortega, C A Alfonso-Rodríguez, L Monsalve-Guil, A España-López, A Jiménez-Guerra, I Garzón, M Alaminos, F J Gil
Roughness and topographical features are the most relevant of the surface properties for a dental implant for its osseointegration. For that reason, we studied the four surfaces more used in titanium dental implants: machined, sandblasted, acid etching and sandblasted plus acid etching. The roughness and wettability (contact angle and surface free energy) was studied by means 3D-interferometric microscope and sessile drop method. Normal human gingival fibroblasts (HGF) were obtained from small oral mucosa biopsies and were used for cell cultures...
July 1, 2016: Materials Science & Engineering. C, Materials for Biological Applications
William Liang
Single stage implant placement is a common treatment modality today. The keratinized tissue, normally left over the implant, for two stage placement with primary closure, is often discarded. The following case reports aim to demonstrate the Vascularized Buccal Inversion Flap ( VBIF ) as a simple technique to augment the connective tissue thickness and enhance ridge contour at the buccal aspect of dental implants at the time of implant placement. The graft vitality is maintained by maintaining vascularity to the donor graft...
April 27, 2016: Journal of Oral Implantology
Renzo Guarnieri, Fabrizio Belleggia, Stefano Ippoliti, Patrica DeVilliers, Luigi Vito Stefanelli, Stefano Di Carlo, Giorgio Pompa
OBJECTIVES: The aim of this study was to evaluate the clinical, radiographic and histologic results when a highly purified xenogenic bone (Laddec(®)) was used as grafting material in maxillary sinuses. MATERIAL AND METHODS: In fifteen patients requiring unilateral maxillary sinus augmentation, the grafting procedure was performed with Laddec(®). Forty-two implants were installed after a 6 month healing period. The height of the augmented sinus was measured radiographically immediately after augmentation and postoperatively up to 36 months...
January 2016: Journal of Oral & Maxillofacial Research
Luca Gobbato, Gianluca Paniz, Fabio Mazzocco, Chin-Wei Wang
OBJECTIVE: Placement of a dental implant during early adolescence may result in an unesthetic outcome or even loss of function. The presented case describes the treatment of infraoccluded dental implants and the esthetic complications for a young adult female who had received two dental implants in the canine positions when she was 16 years old. Clinical considerations: After examination and diagnosis, a multidisciplinary approach was implemented, including the removal of one infraoccluded implant, followed by hard and soft tissue reconstruction prior to implant replacement into an ideal three-dimensional position...
2016: International Journal of Esthetic Dentistry
Sarita Joshi Narayan, Pranav Kumar Singh, Shammas Mohammed, R K V Patel
Presence or absence of a minimal zone of keratinized tissue around dental implants has been a matter of controversy. However, a consensus exists that a thick zone of keratinized zone around implants provides a prosthetic friendly environment, facilitates precise prosthetic procedures, allows oral hygiene maintenance, resists recession, and enhances esthetic blending. The aim of the present case series was to increase the zone of keratinized soft tissue around dental implants supporting overdentures. Three different surgical techniques modified palatal roll technique with and without apical positioning and connective tissue graft (CTG) were used to achieve this goal...
April 2015: Journal of Indian Prosthodontic Society
Ignacio Sanz-Martín, Irena Sailer, Christoph H F Hämmerle, Daniel S Thoma
UNLABELLED: To evaluate volumetric changes (VC) of pontic sites with or without soft tissue grafting over 5 years. MATERIAL AND METHODS: Twelve patients participating in a prospective clinical trial evaluating fixed dental prostheses (FDPs) were selected on the basis of having received a subepithelial connective tissue graft for soft volume augmentation in pontic sites (augmentation group [AG]). An additional 12 patients, belonging to the same study, that had not received soft tissue grafting were used as controls (control group [CG])...
August 2016: Clinical Oral Implants Research
B C M Oosterkamp, B J Polder
The replacement of a missing tooth in the aesthetic zone by a dental implant is, in many respects, a challenge. In order to restore and maintain bone and soft tissue, various procedures are used varying from the immediate placement of a front tooth implant with minimal tissue grafts to an extensive treatment programme with bone grafting, possibly in combination with connective tissue grafts. Another treatment option is orthodontic extrusion. This procedure makes it possible for bone and soft tissue to be created both horizontally and vertically, as a result of which loss of vertical binding can be compensated and the primary stability of the implant can be guaranteed...
November 2015: Nederlands Tijdschrift Voor Tandheelkunde
M A Lopez, M Andreasi Bassi, L Confalone, S Lico, F Carinci
One of the most frequent reasons for failure during the maxillary sinus floor lift operation is connected to the possibility of a rupture of the Schneiderian membrane which, if lacerated, cannot perform the function of graft containment. In order to reduce the incidence of complications it is necessary to cut the hard tissue with extreme accuracy and as little trauma as possible, while saving the soft tissue. The precision of pre-operation measures obtained through endoral x-rays, dental-scans and cone-beam CT allows us to approach and cut with delicacy the sinus cortical floor...
July 2015: Journal of Biological Regulators and Homeostatic Agents
Mi Hyun Seo, Soung Min Kim, Fan Huan, Hoon Myoung, Jong Ho Lee, Suk Keun Lee
Microvascular flap reconstruction is known as successful technique, although vascular thrombosis can cause free flap failure. To analyze the histologic characteristics and causes of free flap failure, this clinical study examined failed free flaps, including the microanastomosed sites. This study included a total of 5 failed flaps, including 3 radial forearm free flaps, 1 latissimus dorsi free flap, and 1 fibular free flap, all performed with microvascular reconstruction surgery from 2009 to 2011 at Seoul National University Dental Hospital...
October 2015: Journal of Craniofacial Surgery
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