scholarly journals EARLY CRESTAL BONE STABILITY AROUND SUPRACRESTALY PLACED DENTAL IMPLANTS. A CASE SERIES

2019 ◽  
Vol 29 (2) ◽  
pp. 61-64
Author(s):  
Saulius Žukauskas ◽  
Algirdas Puišys ◽  
Paulius Andrijauskas ◽  
Linas Zaleckas ◽  
Tomas Linkevičius
Keyword(s):  
Dental Implants ◽  
Soft Tissues ◽  
Bone Remodelling ◽  
Case Series ◽  
Lower Jaw ◽  
Crestal Bone Loss ◽  
Metal Ceramic ◽  
Key Factor ◽  
The Mean ◽  
Implant Treatment

Stability of crestal bone around dental implants is a major concern for oral surgeons and dentists. It is a key factor for success of dental implant treatment. Crestal bone is more prevented from resorption when surrounding tissues are thicker. Aim of the study – to find out the mean of crestal bone loss around supracrestally placed dental implants with matching platform in vertically thick soft tissues. The final patient sample included 34 patients (17 female and 17 male), who received 34 two piece dental implants in total. All 34 implants integrated successfully as evaluation under implant success criteria was applied. Implants were restored by single-unit crowns, using metal-ceramic prostheses. After 1 year thick soft tissues maintain stable crestal bone around dental implants in lower jaw. Minor bone resorption of 0.28 ± 0.36 mm mm could be seen during early bone remodelling phase.

scholarly journals Healing Pattern Analysis for Dental Implants Using the Mechano-Regulatory Tissue Differentiation Model

2020 ◽  
Vol 21 (23) ◽  
pp. 9205
Author(s):  
Ming-Jun Li ◽  
Pei-Ching Kung ◽  
Yuan-Wei Chang ◽  
Nien-Ti Tsou
Keyword(s):  
Dental Implants ◽  
Soft Tissues ◽  
Bone Ingrowth ◽  
Element Model ◽  
Design Guidelines ◽  
Tissue Differentiation ◽  
Bone Implant ◽  
Crestal Bone Loss ◽  
History Of ◽  
Good Agreement

(1) Background: Our aim is to reveal the influence of the geometry designs on biophysical stimuli and healing patterns. The design guidelines for dental implants can then be provided. (2) Methods: A two-dimensional axisymmetric finite element model was developed based on mechano-regulatory algorithm. The history of tissue differentiation around eight selected implants can be predicted. The performance of the implants was evaluated by bone area (BA), bone-implant contact (BIC); (3) Results: The predicted healing patterns have very good agreement with the experimental observation. Many features observed in literature, such as soft tissues covering on the bone-implant interface; crestal bone loss; the location of bone resorption bumps, were reproduced by the model and explained by analyzing the solid and fluid biophysical stimuli and (4) Conclusions: The results suggested the suitable depth, the steeper slope of the upper flanks, and flat roots of healing chambers can improve the bone ingrowth and osseointegration. The mechanism related to solid and fluid biophysical stimuli were revealed. In addition, the model developed here is efficient, accurate and ready to extend to any geometry of dental implants. It has potential to be used as a clinical application for instant prediction/evaluation of the performance of dental implants.

scholarly journals Dental implants in patients with epidermolysis bullosa: a systematic review

2019 ◽  
Vol 23 (4) ◽  
pp. 389-394 ◽  
Author(s):  
Bruno Ramos Chrcanovic ◽  
Ricardo Santiago Gomez
Keyword(s):  
Dental Implants ◽  
Epidermolysis Bullosa ◽  
Oral Rehabilitation ◽  
Electronic Search ◽  
The Mean ◽  
Implant Treatment ◽  
Molar Region

Abstract Purpose To integrate the available data published on patients with epidermolysis bullosa (EB) rehabilitated with dental implants, as well as to review the recommendations for EB patients receiving implants. Methods An electronic search was undertaken in February 2019 in five databases. Results Sixteen publications were included, reporting 28 patients with EB, rehabilitated with 161 dental implants. The mean ± SD patients’ age at implant surgery was 34.7 ± 12.1 years (range, 13–56). Only one implant was placed in the molar region, all other implants were placed in the incisor, canine, and premolar regions. Patients received a mean ± SD of 5.8 ± 2.8 implants (range, 2–11). Most of the patients received implant-supported fixed prostheses (fixed partial 14.3%, fixed full-arch 60.7%, overdenture 25%). Implant and prosthesis failure rates were 1.3% and 0%, respectively. The two implant failures were detected before or at the abutment connection. The mean ± SD follow-up time was of 39.2 ± 24.5 months (range, 6–111). The EB patient quality-of-life improved considerably as a result of treatment with dental implants. There is a series of dental care considerations that should be followed to smooth the implant treatment in EB patients. Conclusions The dental implant failure rate in EB patients seems to be very low, although the few cases reported in the literature were followed up for a short mean period, i.e., just a little bit longer than 3 years. More cases followed up for a long period are needed in order to be able to make a more reliable prognosis for the long-term oral rehabilitation of EB patients with dental implants.

scholarly journals High Crown to Implant Ratio as Stress Factor in Short Implants Therapy

2016 ◽  
Vol 20 (2) ◽  
pp. 94-98
Author(s):  
Ledia Gaxho ◽  
R. Isufi ◽  
E. Petrela ◽  
L. Abazaj ◽  
K. Vera
Keyword(s):  
Cohort Study ◽  
Bone Loss ◽  
Panoramic Radiographs ◽  
Crestal Bone Loss ◽  
Short Implants ◽  
Single Tooth ◽  
The Mean ◽  
As Stress ◽  
Implant Loading ◽  
Implant Treatment

Summary Background/Aim: The purpose of this study was to report the outcomes of crown to implant ratio (C/IR) measurements of single-tooth short implants. The specific aim of this study was to evaluate the effect of C/ IR on crestal bone loss, assessing the success of short locking-taper implants treatment.Materials and Methods: The cohort study was based on a sample of 33 patients, 14 males and 19 females. They were treated by at least one hydroxyapatite-coated Bicon implant, restored with Integrated Abutment Crown cementless technique and porcelain fused to metal crowns. The study was conducted between 2010 and 2015. Patients were recalled after 1-year and 2-year period time. Periapical, panoramic radiographs and clinical photos were obtained. The outcome measures were C/IR, crestal bone levels and the success of short implants therapy.Results: After all the measurements were done on the first day of implant loading and at last visit, the mean C/IR was 1.85 (range, 0.95 to 3.20) and the mean change in the mesio-distal crestal bone levels was -0.73mm. No significant correlation was found between the C/IR and the risk for crestal bone loss nor the risk for implant failure.Conclusions: A high C/IR has no significant effect on crestal bone levels (r= -0.151, p= 0.230) and on failure of implant treatment (p= 0.631) after the insertion of single-tooth locking-taper and implant restorations.

scholarly journals Augmentation the width of a keratinized attached gingiva in patients with dental implantation

2018 ◽  
pp. 5-15
Author(s):  
T. V. Brailovskaya ◽  
A. P. Vedyaeva ◽  
R. V. Kalinin ◽  
E. A. Garibyan ◽  
Z. A. Tangieva ◽  
...  
Keyword(s):  
Dental Implants ◽  
Soft Tissues ◽  
Scientific Interest ◽  
Mucogingival Surgery ◽  
Dental Implantation ◽  
Attached Gingiva ◽  
Long Term Prognosis ◽  
Dermal Matrices ◽  
Implant Treatment

To date, there has been an increase in the scientific interest in the state of soft tissues surrounding dental implants and their influence on the long-term prognosis of implant treatment. It is known, that the risk factors for the development of periimplantitis include a deficiency or complete absence of an attached keratinized gingiva in the area of implants. The article provides a comparative analysis of various methods of mucogingival surgery in the field of dental implants using free gingival autografts and xenogenic dermal matrices.

scholarly journals Biomechanical Evaluation of an Augmented Medial Capsular Repair for Hallux Valgus Surgery

2019 ◽  
Vol 4 (4) ◽  
pp. 2473011419S0030
Author(s):  
Christopher P. Miller ◽  
Megan Paulus ◽  
Christopher Kreulen ◽  
Thomas Harris ◽  
Eric Giza
Keyword(s):  
Hallux Valgus ◽  
Soft Tissues ◽  
Suture Repair ◽  
Maximum Moment ◽  
Capsular Repair ◽  
Key Factor ◽  
Bunion Correction ◽  
Biomechanical Evaluation ◽  
The Mean ◽  
Suture Tape

Category: Bunion Introduction/Purpose: Hallux valgus correction is often complicated by recurrence in the setting of inadequate soft tissue balancing. The etiology of recurrence is multifactorial, but a key factor is the quality of the medial capsulorrhaphy which is limited by the quality and strength of the soft tissues. These soft tissues are often attenuated with loss of integrity due to the longstanding bunion deformity. We hypothesize that the medial capsulorrhaphy augmented with a suture tape construct will create a stronger repair. Methods: 8 unmatched and 16 matched cadaveric foot specimens were prepared. None had bunion deformities. The 8 unmatched samples were tested to determine the strength of the native medial capsule. The 16 matched samples underwent a longitudinal medial capsulotomy, eminence resection and medial capsulorrhaphy with or without augmentation with a suture tape construct. The samples were then tested in a biomechanics lab to determine the strength of the medial capsulorrhaphy. Results: The mean maximum moment for the intact, capsular repair and suture tape groups were 2.19 ± 0.639 Nm, 0.225 ± 0.074 Nm and 0.968 ± 0.581, respectively, P<0.001. The mean stiffness for the intact, capsular repair and suture tape groups were 8.06 ± 3.75 N/mm, 1.463 ± 0.553 N/mm, and 4.438 ± 4.035 N/mm, respectively, P=0.003. The suture tape provided 4.3x higher maximum moment and 3x higher stiffness compared to traditional medial capsulorrhaphy. Conclusion: The study demonstrates that a medial capsular repair augmented in a cadaveric model of medial capsulorrhaphy to provide greater strength compared to conventional suture repair. Recurrence of hallux valgus after surgery is multifactorial. One element is the strength of the medial imbrication and capsular repair at the 1st metatarsal phalangeal joint (MTPJ). The study presents biomechanical data demonstrating that this repair is strengthened with suture tape augmentation at the medial 1st MTPJ. This may result in decreased recurrence and potentially improved patient satisfaction following bunion correction.

scholarly journals Reconstruction of Hind and Mid-Foot Defects after Melanoma Resection Using the Reverse Sural Flap: A Case Series

2017 ◽  
Vol 03 (03) ◽  
pp. e124-e127 ◽  
Author(s):  
Juan Larrañaga ◽  
Pedro Picco ◽  
Alejandro Yanzon ◽  
Marcelo Figari
Keyword(s):  
Soft Tissues ◽  
Reverse Flow ◽  
Weight Bearing ◽  
Case Series ◽  
Viable Option ◽  
Sural Flap ◽  
Flap Survival ◽  
Partial Necrosis ◽  
The Mean ◽  
Sural Artery

Background Melanoma resection creates important soft tissues defects, which are difficult to manage when located on the weight-bearing heel and mid foot. There is little evidence on the use of the reverse-flow sural flap for this type of reconstruction. Objective This study reports our case series on the reconstructive management of the hind and mid-foot defects after melanoma resection using the reverse sural artery flap. Materials and Methods This is a retrospective study of four consecutive patients treated with resection of melanoma of the feet and reconstruction with reverse sural artery flap from 2006 to 2009. Results The mean age of the patients was 54 years, three were females, and one was male. Three of the defects were located on the weight-bearing heel, the other on the mid-foot dorsum. The melanomas were fully resected with wide margins. Three patients were reconstructed primarily, whereas one patient was reconstructed 4 weeks after the resective surgery. This series revealed 100% flap survival and there was no partial necrosis. Major complications were not observed. The four patients completely recovered the function of the affected limb. Conclusion The reverse sural flap is a viable option for the reconstruction of foot defects after melanoma resection.

scholarly journals Ultrasonography for noninvasive and real-time evaluation of peri-implant soft and hard tissue: a case series

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Miriam Thöne-Mühling ◽  
Oliver D. Kripfgans ◽  
Reiner Mengel
Keyword(s):  
Soft Tissue ◽  
Dental Implants ◽  
Case Series ◽  
Ultrasound Images ◽  
Hard Tissue ◽  
Additional Information ◽  
Non Invasive ◽  
Crestal Bone Loss ◽  
High Prevalence ◽  
Radiological Measurements

Abstract Background The diagnosis of soft and hard tissue at dental implants will be challenging in the future, as high prevalence of mucositis and peri-implantitis were described in the population. Ultrasonography is a promising non-invasive, inexpensive, painless, and radiation-free method for imaging hard and soft tissue at implants, especially an ultrasound device with a 25-MHz probe demonstrating a high correlation between ultrasound, clinical, and radiological measurements. Case presentation The following case series demonstrates the use of ultrasonography with high spatial resolution probe in patients with dental implants affected by soft tissue recession and/or crestal bone loss. Conclusion These ultrasound images can provide valuable additional information for the assessment of peri-implant soft and hard tissue.

Total Knee Arthroplasty for Fixed Valgus Deformity Correction Using a Modified Lateral Parapatellar Approach

2019 ◽  
Vol 33 (04) ◽  
pp. 372-377 ◽  
Author(s):  
Hu Li ◽  
Danielle Y. Ponzio ◽  
Alvin Ong ◽  
Wei Wei ◽  
Baicheng Wang ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Soft Tissues ◽  
Case Series ◽  
Deformity Correction ◽  
Valgus Deformity ◽  
Radiographic Measurement ◽  
Functional Scores ◽  
Total Knee ◽  
The Mean

AbstractTotal knee arthroplasty (TKA) for patients with valgus deformity (> 10 degrees) is technically challenging and has produced variable clinical results in terms of deformity correction, instability, and overall outcomes. The lateral parapatellar approach (LPA) is an alternative to the traditional medial parapatellar approach with potential advantages of direct access for release of tight lateral ligamentous structures with preservation of the medial structures, optimized patellar tracking, preserved medial blood supply to the patella, and less use of constrained implants. We present a case series of a single institution's experience with use of a modified LPA using a Z-capsuloplasty for 35 primary TKA cases in 30 patients with osteoarthritis and Ranawat's type-II fixed valgus deformity with attenuation of medial soft tissues. The mean age of patients was 64.8 years (range: 42–78 years). Follow-up duration was a mean of 47.3 months (range: 3–130 months). The patients were assessed pre- and postoperatively using radiographic measurement of the anatomic femorotibial angle (FTA) and clinical measurement of range of motion (ROM) and the Chinese knee society score (KSS). Complications and reoperations were recorded. The mean coronal alignment was corrected from 20.4 degrees of valgus (range: 11.3–42 degrees) preoperatively to 7.0 degrees of valgus (range: 3.6–15.1 degrees) postoperatively. One case required use of a constrained condylar design implant. At a mean of 47.3 months, the mean Knee Society objective and functional scores improved to 91.8 ± 6.6 and 84.3 ± 18.2 points, respectively. Mean ROM was 94.9 degrees preoperatively and 105.7 degrees postoperatively. Three cases (8.6%) had postoperative complications, including transient common peroneal nerve palsy, hematoma, and deep infection. One patient underwent two-stage revision for infection. There were no cases of late instability. The modified LPA using a Z-capsuloplasty is a reproducible and effective surgical technique for performing TKA in the setting of osteoarthritis and severe valgus deformity.

Long-term outcomes of lumbar microdiscectomy in the pediatric population: a large single-institution case series

2019 ◽  
Vol 24 (5) ◽  
pp. 549-557
Author(s):  
Malia McAvoy ◽  
Heather J. McCrea ◽  
Vamsidhar Chavakula ◽  
Hoon Choi ◽  
Wenya Linda Bi ◽  
...  
Keyword(s):  
Conservative Management ◽  
Functional Outcomes ◽  
Pediatric Patients ◽  
Clinical Presentation ◽  
Case Series ◽  
Csf Leak ◽  
Single Institution ◽  
The Mean

OBJECTIVEFew studies describe long-term functional outcomes of pediatric patients who have undergone lumbar microdiscectomy (LMD) because of the rarity of pediatric disc herniation and the short follow-up periods. The authors analyzed risk factors, clinical presentation, complications, and functional outcomes of a single-institution series of LMD patients over a 19-year period.METHODSA retrospective case series was conducted of pediatric LMD patients at a large pediatric academic hospital from 1998 to 2017. The authors examined premorbid risk factors, clinical presentation, physical examination findings, type and duration of conservative management, indications for surgical intervention, complications, and postoperative outcomes.RESULTSOver the 19-year study period, 199 patients underwent LMD at the authors’ institution. The mean age at presentation was 16.0 years (range 12–18 years), and 55.8% were female. Of these patients, 70.9% participated in competitive sports, and among those who did not play sports, 65.0% had a body mass index greater than 25 kg/m2. Prior to surgery, conservative management had failed in 98.0% of the patients. Only 3 patients (1.5%) presented with cauda equina syndrome requiring emergent microdiscectomy. Complications included 4 cases of postoperative CSF leak (2.0%), 1 case of a noted intraoperative CSF leak, and 3 cases of wound infection (1.5%). At the first postoperative follow-up appointment, minimal or no pain was reported by 93.3% of patients. The mean time to return to sports was 9.8 weeks. During a mean follow-up duration of 8.2 years, 72.9% of patients did not present again after routine postoperative appointments. The total risk of reoperation was a rate of 7.5% (3.5% of patients underwent reoperation for the same level; 4.5% underwent adjacent-level decompression, and one patient [0.5%] ultimately underwent a fusion).CONCLUSIONSMicrodiscectomy is a safe and effective treatment for long-term relief of pain and return to daily activities among pediatric patients with symptomatic lumbar disc disease in whom conservative management has failed.

Sign in / Sign up

Export Citation Format

Share Document