Implant Prosthetic Rehabilitation with Bone Regenerative Techniques after Fracture of the Upper Central Incisors

A case of implant-bone prosthetic rehabilitation, after the fracture of the maxillary central incisors, which had been treated with grafting of a bone substitute, is reported. This case was followed by the normal procedures of implantology within the traditional timeframe for bone regeneration. However, a barrier membrane was not used which shows that even along with the use of graft material a sufficient amount of bone could be achieved for a subsequent rehabilitation. Therefore, after a five-year follow-up period, osseointegration was maintained with no marginal bone loss.

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An evaluation of peri-implant marginal bone loss according to implant type, surgical technique and prosthetic rehabilitation: a retrospective multicentre and cross-sectional cohort study

Odontology ◽

10.1007/s10266-020-00587-9 ◽

2021 ◽

Author(s):

Lizett Castellanos-Cosano ◽

Alba Carrasco-García ◽

José-Ramón Corcuera-Flores ◽

Javier Silvestre-Rangil ◽

Daniel Torres-Lagares ◽

...

Keyword(s):

Cohort Study ◽

Surgical Technique ◽

Bone Loss ◽

Prosthetic Rehabilitation ◽

Marginal Bone Loss ◽

Cross Sectional

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Aesthetic Outcomes and Peri-Implant Health of Angled Screw Retained Implant Restorations Compared with Cement Retained Crowns: Medium Term Follow-Up

Journal of Functional Biomaterials ◽

10.3390/jfb12020035 ◽

2021 ◽

Vol 12 (2) ◽

pp. 35

Author(s):

Livia Nastri ◽

Ludovica Nucci ◽

Vincenzo Grassia ◽

Rino Miraldi

Keyword(s):

Bone Loss ◽

Functional Results ◽

Technical Solution ◽

Marginal Bone Loss ◽

Single Tooth ◽

Natural Teeth ◽

The Aesthetic ◽

Single Implant ◽

Single Tooth Implant

Single tooth implant restorations in the aesthetic area are a demanding challenge. If a complete osseointegration is mandatory, the final result has to result in a higher standard of biomimetic and soft tissue health among natural teeth. This outcome is traditionally pursued by cementing crowns over individualized abutments. However, in recent years, the need for controlling peri-implant health and the preference towards a retrievable solution has led to an increase in screw-retained crowns, which is not always applicable when the implant axis is not ideal. In the aesthetic area, the use of a novel technical solution represented by the angled screw channel (ASC) of the abutment has been proposed in order to match the advantages of the screwed solution with the aesthetic demands. The aim of this study was to compare ASC crowns to cemented crowns (CC) in single implant restorations using the white esthetic score (WES) and pink esthetic score (PES) at the crown delivery and at a follow-up of a minimum of 2 years. Peri-implant health and marginal bone loss (MBL) were also evaluated. The mean follow-up was 44.3 months, with a mean MBL of 0.22 mm in the ASC group and 0.29 mm in the CC group. The total WES/PES score was 16.6 for ASC, compared with 17.3 for CC at baseline, and 16.2 and 17.1, respectively, at follow-up. Both of the groups reached a high WES/PES, and this was maintained over time, without signs of peri-implant diseases or bone loss, regardless of the choice of connection. In conclusion, ASC can be adopted in cases where the implant axis is not ideal, with aesthetic and functional results that are comparable to implants restored by cemented crowns.

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Clinical Case Employing Two Different Biomaterials in Bone Regeneration

Applied Sciences ◽

10.3390/app10134516 ◽

2020 ◽

Vol 10 (13) ◽

pp. 4516

Author(s):

Roberto Ghiretti ◽

Carlo F. Grottoli ◽

Alberto Cingolani ◽

Giuseppe Perale

Keyword(s):

Bone Regeneration ◽

Gold Standard ◽

Bone Substitute ◽

Clinical Case ◽

Hybrid Approach ◽

Standard Technique ◽

Surgical Strategies ◽

Calcium Phosphosilicate ◽

Gold Standard Technique

The case of a 59-year-old woman lacking bone in the lower left side of her mandible, and treated with two different biomaterials for bone regeneration, is reported here. Specifically, two different anatomical sites damaged by two different pathologies were studied: a radicular fracture and peri-implantitis. The sites were treated via xenograft bone substitute and calcium phosphosilicate, respectively. Follow-up evaluations showed that the two different methodologies employing different materials in the same organism undergoing the same metabolic processes achieved the same good results. This represents a significant change in current surgical strategies for the dental region: instead of focusing on a single gold-standard technique, it is possible to follow a hybrid approach by adapting the biomaterial and the protocol used to the specificities of the defect.

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The Association of the One-Abutment at One-Time Concept with Marginal Bone Loss around the SLA and Platform Switch and Conical Abutment Implants

Journal of Clinical Medicine ◽

10.3390/jcm11010074 ◽

2021 ◽

Vol 11 (1) ◽

pp. 74

Author(s):

Nasreen Hamudi ◽

Eitan Barnea ◽

Evgeny Weinberg ◽

Amir Laviv ◽

Eitan Mijiritsky ◽

...

Keyword(s):

Bone Loss ◽

Test Group ◽

Mucosal Barrier ◽

Control Group ◽

X Rays ◽

Marginal Bone Loss ◽

Bone Level ◽

The Difference ◽

The One

Objectives: Repeated abutment disconnection/reconnection may compromise the mucosal barrier and result in crestal bone level changes. The clinical significance of this phenomenon is not yet clear, as most studies on this topic are short-term. Therefore, the aim of the present study was to evaluate the influence of abutment disconnections and reconnections on peri-implant marginal bone loss over a medium-term follow-up period. Material and methods: Twenty-one patients (6 men and 15 women) with a mean age 66.23 ± 9.35 year at the time of implant placement were included. All patients who received two adjacent nonsubmerged implants were randomly assigned into one of the two groups: definitive multiunit abutments (DEFs) connected to the implant that were not removed (test group) or healing abutments (HEAs) placed at surgery, which were disconnected and reconnected 3–5 times during the prosthetic phase (control group). Peri-implant marginal bone levels (MBL) were measured through periapical X-rays images acquired immediately after the surgery (baseline), at 4–7 months immediately after prosthetic delivery, and at 1-year and 3-year follow-up visits. Results: No implant was lost or presented bone loss of more than 1.9 mm during the 3-year follow-up; thus, the survival and success rate was 100%. Peri-implant mucositis was noticed in 38.1% DEFs and 41.9% of HEAs at the 3-year follow-up assessment. At the end of 3 years, the MBL was −0.35 ± 0.69 mm for participants in the DEFs group and −0.57 ± 0.80 mm for the HEAs group, with significant statistical difference between groups. Conclusions: Immediate connection of the multiunit abutments reduced bone loss in comparison with 3–5 disconnections noted in the healing abutments 3 years after prosthetic delivery. However, the difference between the groups was minimal; thus, the clinical relevance of those results is doubtful.

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Hybrid Polyetheretherketone (PEEK)–Acrylic Resin Prostheses and the All-on-4 Concept: A Full-Arch Implant-Supported Fixed Solution with 3 Years of Follow-Up

Journal of Clinical Medicine ◽

10.3390/jcm9072187 ◽

2020 ◽

Vol 9 (7) ◽

pp. 2187 ◽

Cited By ~ 1

Author(s):

Miguel de Araújo Nobre ◽

Carlos Moura Guedes ◽

Ricardo Almeida ◽

António Silva ◽

Nuno Sereno

Keyword(s):

Bone Loss ◽

Subjective Evaluation ◽

Acrylic Resin ◽

Primary Outcome Measure ◽

Secondary Outcome ◽

Marginal Bone Loss ◽

Mechanical Complications ◽

Hybrid Prosthesis ◽

Technical Complication

Background: The aim of this three-year prospective study was to examine the outcome of a solution for full-arch rehabilitation through a fixed implant-supported hybrid prosthesis (polyetheretherketone (PEEK)-acrylic resin) used in conjunction with the All-on-4 concept. Methods: Thirty-seven patients (29 females, 8 males), with an age range of 38 to 78 years (average: 59.8 years) were rehabilitated with 49 full-arch implant-supported prostheses (12 maxillary rehabilitations, 13 mandibular rehabilitations and 12 bimaxillary rehabilitations). The primary outcome measure was prosthetic survival. Secondary outcome measures were marginal bone loss, plaque and bleeding scores, veneer adhesion issues, biological complications, mechanical complications, and the patients’ subjective evaluation. Results: There were two patients (maxillary rehabilitations) lost to follow-up, while one patient withdrew (maxillary rehabilitation). One patient with bimaxillary rehabilitation fractured the mandibular PEEK framework, rendering a 98% prosthetic survival rate. Implant survival was 100%. Average (standard deviation) marginal bone loss at 3-years was 0.40 mm (0.73 mm). Veneer adhesion was the only technical complication (n = 8 patients), resolved for all patients. Nine patients (n = 11 prostheses) experienced mechanical complications (all resolved): fracture of acrylic resin crowns (n = 3 patients), prosthetic and abutment screw loosening (n = 4 patients and 3 patients, respectively), abutment wearing (n = 1 patient). One patient experienced a biological complication (peri-implant pathology), resolved through non-surgical therapy. A 90% satisfaction rate was registered for the patients’ subjective evaluation. Conclusions: Based on the results, the three-year outcome suggests the proposed rehabilitation solution as a legitimate treatment option, providing a potential shock-absorbing alternative that could benefit the implant biological outcome.

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A One-year Follow-up Study of a Tapered Hydrophilic Implant Design Using Various Placement Protocols in the Maxilla

The Open Dentistry Journal ◽

10.2174/1874210601610010680 ◽

2016 ◽

Vol 10 (1) ◽

pp. 680-691 ◽

Cited By ~ 4

Author(s):

Jakob Zwaan ◽

Leonardo Vanden Bogaerde ◽

Herman Sahlin ◽

Lars Sennerby

Keyword(s):

Survival Rate ◽

Bone Loss ◽

Implant Design ◽

Insertion Torque ◽

Daily Routine ◽

High Survival ◽

Marginal Bone Loss ◽

The Mean ◽

One Year

Purpose: To study the clinical/radiographic outcomes and stability of a tapered implant design with a hydrophilic surface when placed in the maxilla using various protocols and followed for one year. Methods: Ninety-seven consecutive patients treated as part of daily routine in two clinics with 163 tapered implants in healed sites, in extraction sockets and together with bone augmentation procedures in the maxilla were evaluated after one year in function. Individual healing periods varying from 0 to 6 months had been used. Insertion torque (IT) and resonance frequency analysis (RFA) measurements were made at baseline. Follow-up RFA registrations were made after 6 and 12 months of loading. The marginal bone levels were measured in intraoral radiographs from baseline and after 12 months. A reference group consisting of 163 consecutive straight maxillary implants was used for the comparison of baseline IT and RFA measurements. Results: Five implants failed before loading, giving an implant survival rate of 96.9% and a prosthesis survival rate of 99.4% after one year. The mean marginal bone loss after one year was 0.5 mm (SD 0.4). The mean IT was statistically significantly higher for tapered than for straight reference implants (41.3 ± 12.0 Ncm vs 33.6 ± 12.5 Ncm, p < 0.001). The tapered implants showed a statistically insignificantly higher mean ISQ value than the straight references implants (73.7 ± 6.4 ISQ vs 72.2 ± 8.0 ISQ, p=0.119). There was no correlation between IT and marginal bone loss. There was a correlation between IT and RFA measurements (p < 0.001). Conclusion: The tapered implant showed a high survival rate and minimal marginal bone loss after one year in function when using various protocols for placement. The tapered implant showed significantly higher insertion torque values than straight reference implants.

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Marginal Bone Loss at Implants: A Retrospective, Long-Term Follow-Up of Turned Brånemark System® Implants

Clinical Implant Dentistry and Related Research ◽

10.1111/j.1708-8208.2008.00092.x ◽

2009 ◽

Vol 11 (1) ◽

pp. 11-23 ◽

Cited By ~ 44

Author(s):

Solweig Sundén Pikner ◽

Kerstin Gröndahl ◽

Torsten Jemt ◽

Bertil Friberg

Keyword(s):

Bone Loss ◽

Marginal Bone Loss ◽

Long Term Follow Up

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Treatment of Full and Partial Arches with Internal-Conical-Connection Dental Implants: Clinical Results after 5 Years of Follow-Up

Applied Sciences ◽

10.3390/app10238709 ◽

2020 ◽

Vol 10 (23) ◽

pp. 8709

Author(s):

Diego Lops ◽

Riccardo Guazzo ◽

Alessandro Rossi ◽

Antonino Palazzolo ◽

Vittorio Favero ◽

...

Keyword(s):

Bone Loss ◽

Dental Implants ◽

Clinical Results ◽

Marginal Bone Loss ◽

Significant Difference ◽

Distal Aspect ◽

The Stability ◽

Maxilla And Mandible ◽

Implant Loading

The aim of the present investigation is to evaluate the implant therapy outcomes over a period of 5 years and to analyze several patient risk factors influencing the stability of the peri-implant tissues. Seventy-eight patients were consecutively treated between 2009 and 2017 and restored with implant-supported fixed prostheses. The following inclusion criteria were considered: partial or complete edentulism; residual bone volume of at least 3.3 mm in diameter and 8 mm in length; a favorable relationship between maxilla and mandible; at least a minimum 5 year follow-up for each implant included in the statistical analysis. Intraoral radiographs were taken at implant loading and every 12 months during the follow-up visits. They were subsequently stored on a personal computer and analyzed to determine the changes in bone level. Seventy-eight patients receiving 209 implants completed a minimum follow-up period of 5 years. One-hundred dental implants were inserted in the maxilla while 109 were placed in the mandible. Eleven (14.1%) out of 78 treated patients who received 29 (13.9%) dental implants were considered as drop-outs. On the whole, peri-implantitis was diagnosed in three implants. The average final pocket probing depth at implant level was 2.5 ± 1.2 mm. The average final bone loss after 5 years was 0.3 ± 0.4 mm, both at the mesial and distal aspect of the implant. The effects of the prosthesis type, sex and implant site did not statistically influence the marginal bone loss; on the contrary, a statistically significant difference regarding marginal bone loss was detected between smoker and non-smoker patients (p = 0.021). Implants with internal-conical abutment connection showed stable peri-implant bone levels at the medium-term follow-up. Nevertheless, further prospective long-term clinical studies are necessary to confirm these data.

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Marginal bone loss around implants retaining hinging mandibular overdentures, at 4-, 8- and 12-years follow-up

Journal Of Clinical Periodontology ◽

10.1034/j.1600-051x.2001.028007628.x ◽

2001 ◽

Vol 28 (7) ◽

pp. 628-633 ◽

Cited By ~ 41

Author(s):

Daniel van Steenberghe ◽

Marc Quirynen ◽

Ignace Naert ◽

Gaia Maffei ◽

Reinhilde Jacobs

Keyword(s):

Bone Loss ◽

Marginal Bone Loss

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Does the Laser-Microtextured Short Implant Collar Design Reduce Marginal Bone Loss in Comparison with a Machined Collar?

BioMed Research International ◽

10.1155/2016/9695389 ◽

2016 ◽

Vol 2016 ◽

pp. 1-10 ◽

Cited By ~ 3

Author(s):

B. Alper Gultekin ◽

Ali Sirali ◽

Pinar Gultekin ◽

Serdar Yalcin ◽

Eitan Mijiritsky

Keyword(s):

Bone Resorption ◽

Bone Loss ◽

Marginal Bone Loss ◽

Posterior Teeth ◽

Cumulative Survival ◽

Probing Depth ◽

Before And After ◽

Retrospective Study Design ◽

Short Implant

Purpose. To compare marginal bone loss between subgingivally placed short-collar implants with machined collars and those with machined and laser-microtextured collars.Materials and Methods. The investigators used a retrospective study design and included patients who needed missing posterior teeth replaced with implants. Short-collar implants with identical geometries were divided into two groups: an M group, machined collar; and an L group, machined and laser-microtextured collar. Implants were evaluated according to marginal bone loss, implant success, and probing depth (PD) at 3 years of follow-up.Results. Sixty-two patients received 103 implants (56 in the M group and 47 in the L group). The cumulative survival rate was 100%. All implants showed clinically acceptable marginal bone loss, although bone resorption was lower in the L group (0.49 mm) than in the M group (1.38 mm) at 3 years (p<0.01). A significantly shallower PD was found for the implants in the L group during follow-up (p<0.01).Conclusions. Our results suggest predictable outcomes with regard to bone loss for both groups; however, bone resorption was less in the L group than in the M group before and after loading. The laser-microtextured collar implant may provide a shallower PD than the machined collar implant.

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