Retrospective success and survival rates of dental implants placed with simultaneous bone augmentation in partially edentulous patients

Abstract Background Few large-sample studies in China have focused on the early survival of dental implants. The present study aimed to report the early survival rates of implants and determine the related influencing factors. Methods All patients receiving dental implants at our institution between 2006 and 2017 were included. The endpoint of the study was early survival rates of implants, according to gender, age, maxilla/mandible, dental position, bone augmentation, bone augmentation category, immediate implant, submerged implant category, implant diameter, implant length, implant torque, and other related factors. Initially, SPSS22.0 was used for statistical analysis. The Chi-square test was used to screen all factors, and those with p < 0.05 were further introduced into a multiple logistic regression model to illustrate the risk factors for early survival rates of implants. Results In this study, we included 1078 cases (601 males and 477 females) with 2053 implants. After implantation, 1974 implants were retained, and the early survival rate was 96.15%. Patients aged 30–60 years (OR 2.392), with Class I bone quality (OR 3.689), bone augmentation (OR 1.742), immediate implantation (OR 3.509), and implant length < 10 mm (OR 2.972), were said to possess risk factors conducive to early survival rates. Conclusions The early survival rate of implants in our cohort exceeded 96%, with risk factors including age, tooth position, bone quality, implant length, bone augmentation surgery, and immediate implantation. When the above factors coexist, implant placement should be treated carefully.

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Mortality in Edentulous Patients: A Registry-Based Cohort Study in Sweden Comparing 8463 Patients Treated with Removable Dentures or Implant-Supported Dental Prostheses

International Journal of Dentistry ◽

10.1155/2021/9919732 ◽

2021 ◽

Vol 2021 ◽

pp. 1-9

Author(s):

Jan Kowar ◽

Victoria Stenport ◽

Mats Nilsson ◽

Torsten Jemt

Keyword(s):

Socioeconomic Status ◽

Dental Implants ◽

Low Socioeconomic Status ◽

Social Insurance ◽

Survival Rates ◽

Reference Population ◽

Logistic Analysis ◽

Dental Prostheses ◽

All Cause Mortality ◽

Edentulous Patients

Objectives. The purpose of this study was to investigate if edentulism is associated with all-cause mortality. The aims were to analyze the association between age, socioeconomic factors, and mortality in edentulous patients treated with either removable dentures or implant-supported prostheses. Methods. All patients who became edentulous according to the Swedish Social Insurance Agency (SSIA) between 2009 and 2013 (N = 8463) were analyzed regarding prosthetic treatment, age, gender, and socioeconomic status. The patients were divided into two groups, depending on whether they were treated with dental implants (implant group; IG) or with conventional removable dentures (denture group; DG). Data on mortality for all included individuals were obtained from the Swedish National Cause of Death Register and compared to a reference population. Cumulative survival rates were calculated, and a multivariable regression analysis for the included variables was performed. Results. Between 2009 and 2018, 2192 of the patients (25.9%) were treated with implant-supported dental prostheses (IG) and 6271 patients (74.1%) were treated with removable dentures without support of dental implants (DG). Altogether 2526 patients (30%) died until December 31, 2019, and the overall mortality was significantly higher for the DG compared to the IG during follow-up ( p < 0.001 ). Younger edentulous patients (≤59 years) presented a higher mortality than the reference population, while implant patients over 79 years of age demonstrated a lower mortality. The final results from the multivariable logistic analysis showed that lower equalized disposable income (EDI) and the choice of conventional removable dentures are the most important factors for increased patient mortality ( p < 0.001 ). Conclusions. Edentulous patients have an overall higher mortality compared to a reference population. Low socioeconomic status increases all-cause mortality. Individuals treated with dental implants show statistically significant lower 10-year mortality compared to patients treated with conventional removable dentures, regardless of socioeconomic status.

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1359 Everyone Deserves to Smile: An Audit on The Success Rate of Dental Implants in Complex Maxillofacial Patients

British Journal of Surgery ◽

10.1093/bjs/znab259.147 ◽

2021 ◽

Vol 108 (Supplement_6) ◽

Author(s):

P Lugaric ◽

C Frezzini ◽

A Patterson

Keyword(s):

Dental Implants ◽

Maxillofacial Surgery ◽

Survival Rates ◽

Oral And Maxillofacial Surgery ◽

Head And Neck Reconstruction ◽

Success Rates ◽

Native Bone ◽

Local Standard ◽

Edentulous Patients ◽

Surgery Department

Abstract Aim To determine the success rates of dental implants in complex patients treated in the Oral and Maxillofacial Surgery Department at Rotherham General Hospital (RGH). Method All patients who received dental implants in the period January 2010 – March 2017 at RGH were included in the audit. Standards 90% local standard Results 68 dental implants were placed in 22 patients: 15 patients head and neck reconstruction, 5 atrophic edentulous patients, 2 trauma. Conclusions Survival rates for dental implants in the literature is variable ranging from 91 -96% in native bone and mucosa and 46 - 98% in irradiated tissue.

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Application of Immediate Loaded Mini Dental Implants for Retaining Mandibular Overdenture Prosthesis in Edentulous Patients: A Systematic Review

Applied Sciences ◽

10.3390/app112210724 ◽

2021 ◽

Vol 11 (22) ◽

pp. 10724

Author(s):

Abdulaziz A. AlHelal

Keyword(s):

Dental Implants ◽

English Literature ◽

Treatment Options ◽

Survival Rates ◽

Tissue Response ◽

Marginal Bone Loss ◽

Probing Depth ◽

The Mean ◽

Edentulous Patients ◽

Mandibular Overdenture

The aim was to systematically review the efficacy of immediate loaded mini dental implants (MDIs) to retain mandibular overdentures in regards to survival rates of MDIs, peri-implant clinical and radiographic tissue response and associated factors. A literature search of English literature was performed using Google Scholar, Scopus, Web of Science, MEDLINE (OVID), EMBASE, and PubMed using predetermined inclusion criteria. Specific terms were utilized in searching from the inception of the respective databases up to April 2021. The focused question was: Do immediate loaded MDIs supporting mandibular overdentures present favorable treatment options for prosthetic rehabilitation? The 11 articles included in the present review examined 349 patients (198 males + 171 females [66.65 ± 6.28 years]) in which 1190 MDIs were placed to retain mandibular overdentures. The mean follow-up duration was 24.5 months. The cumulative survival rate of MDIs was 97.3%. The mean scores of plaque index, gingival index, probing depth, and bleeding on probing ranged between 0–3, 0–3, and 1.203–1.76 respectively, whereas the mean marginal bone loss values ranged from 0.42 ± 0.56 mm to 1.26 ± 0.64 mm. The results identified that the application of immediate loaded MDIs to retain mandibular overdentures are a potential treatment modality for edentulous patients.

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Influence of Insertion Torque on Clinical and Biological Outcomes before and after Loading of Mandibular Implant-Retained Overdentures in Atrophic Edentulous Mandibles

BioMed Research International ◽

10.1155/2019/8132520 ◽

2019 ◽

Vol 2019 ◽

pp. 1-14 ◽

Cited By ~ 2

Author(s):

Fernanda Faot ◽

Amália Machado Bielemann ◽

Alessandra Julie Schuster ◽

Raissa Micaella Marcello-Machado ◽

Altair Antoninha Del Bel Cury ◽

...

Keyword(s):

Clinical Outcomes ◽

Dental Implants ◽

Survival Rates ◽

Rank Correlation ◽

Primary Stability ◽

Insertion Torque ◽

Success Rates ◽

Implant Stability ◽

Before And After ◽

Edentulous Patients

Aim. To evaluate the influence of primary insertion torque (IT) values of narrow dental implants on the peri-implant health, implant stability, immunoinflammatory responses, bone loss, and success and survival rates. Methods. Thirty-one edentulous patients received two narrow implants (2.9x10mm, Facility NeoPoros) to retain mandibular overdentures. The implants were categorized in four groups according to their IT: (G1) IT > 10 Ncm; (G2) IT ≥ 10Ncm and ≤ 30 Ncm; (G3) IT >30Ncm and < 45Ncm; (G4) IT ≥ 45Ncm, and all implants were loaded after 3 months of healing. The following clinical outcomes were evaluated 1, 3, 6, and 12 months after implant insertion: (i) peri-implant tissue health (PH), gingival index (GI), plaque index (PI), calculus presence (CP), probing depth (PD), and bleeding on probing (BOP); (ii) implant stability quotient (ISQ) by resonance frequency analysis; and (iii) IL-1β and TNF-α concentration in the peri-implant crevicular fluid. The marginal bone level (MBL) and changes (MBC) were evaluated. The Chi2 test, Kruskal-Wallis test, mixed-effects regression analysis, and the Kendall rank correlation coefficient were used for statistical analysis (α = 5%). Results. G1 presented the highest PD at all evaluated periods. G2 presented higher PI at month 6 and 12. G4 showed increased GI at month 3 and 12 and more CP at month 1 (p=.003). G2 and G4 had higher ISQ values over the study period, while those from G1 and G3 presented lower ISQ values. The IL-1β concentration increased until month 12 and was independent of IT and bone type; G4 had a higher IL-1β concentration in month 3 than the other groups (p=.015). The TNF-α release was negatively correlated with IT, and TNF-α release was highest in G1 at month 12. The MBL immediately after surgery and the MBC at month 12 were similar between the groups, and G4 presented a positive MBC at month 12. The survival and success rates were 75% for G1, 81.3% for G2, 64.3% for G3, and 95% for G4. Conclusion. The IT did not influence the clinical outcomes and the peri-implant immunoinflammatory responses and was weakly correlated with the narrow dental implants primary stability. The observed success rates suggest that the ideal IT for atrophic fully edentulous patients may deviate from the standardized IT of 32 Ncm.

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Comparative study of splinted and unsplinted implant-retained maxillary overdentures without palatal coverage: A literature review

Brazilian Dental Science ◽

10.14295/bds.2017.v20i4.1482 ◽

2017 ◽

Vol 20 (4) ◽

pp. 32

Author(s):

Ingrid ísis Nogueira Simões ◽

Silvana Marques Miranda Spyrides ◽

Fabiana Ribeiro da Silva Schanuel ◽

Elson Braga De Mello

Keyword(s):

Literature Review ◽

Dental Implants ◽

English Language ◽

Search Strategy ◽

Survival Rates ◽

Salivary Flow ◽

Prosthetic Rehabilitation ◽

Careful Planning ◽

Edentulous Patients ◽

Great Survival

The palatal coverage is considered as an auxiliary element in the distribution of tensile strains on implant maxillary total prosthesis (implant overdentures) bases, either implant-supported or retained. However, complaints in some patients due to palate and phonetic impairment are constant. The palatal coverage removal would allow the improvement of these issues as well as pharyngeal control, salivary flow and hygiene. Thus, this literature review proposed to analyze the survival rates of dental implants retaining an implant maxillary overdenture without palatal coverage in edentulous maxilla. The review was conducted in Medline database, via PubMed between 2000 to 2016 period, and limited to English language publications. The search strategy took the following key-words, referencing title and / or abstract: dental implants; maxilla; maxillary; overdenture; and palatal coverage. According the data, the rehabilitation of the maxillary edentulous with four implant-supported overdentures with bar attachments and implant-retained with ball attachments has shown great survival rates of dental implants, but there are a few studies reporting the survival rate of implant overdentures. It was concluded that the prosthetic rehabilitation of total maxillary edentulous patients is viable through palateless implant overdentures when a minimum of four to six implants were used with careful planning and execution. KeywordsDental Implants; Maxilla; Overdenture and Palatal coverage.

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A STUDY ON CLINICAL AND X - RAY FEATURES OF PARTIALLY&NBSP; EDENTULOUS PATIENTS WITH DENTAL IMPLANT

Journal of Medicine and Pharmacy ◽

10.34071/jmp.2011.1.13 ◽

2011 ◽

pp. 96-103

Author(s):

Quang Hai Nguyen ◽

Toai Nguyen

Keyword(s):

Dental Implants ◽

Dental Implant ◽

Tooth Loss ◽

Permanent Teeth ◽

Missing Teeth ◽

X Ray ◽

Lower Jaw ◽

Molar Teeth ◽

Edentulous Patients ◽

Missing Tooth

1. Background: Loss of permanent teeth is very common, affected chewing function, speech and aesthetics; restoration of missing teeth with dental implant has several advantages, but we need thoroughly study the clinical and X ray features at the position at missing teeth, then to select the type of implant and make the best plan for the dental implant patients. 2. Materials and method: Cross-section descriptive study. From January 2009 to November 2010, study with 56 patients with 102 implants of MIS and Megagen systems at the Faculty of Odonto-Stomatology, Hue College of Medicine and Pharmacy and Vietnam-Cuba Hospital in Ha Noi. 3. Results: Distributed equally in male and female, common ages 40 – 59 (55,4%), the majority of missing teeth occurs in the lower jaw (63,8%) and especially, the teeth 36 and 46 (25,4%). The majority of missing teeth due to dental caries, dental pulp and apical diseases (64,7%) of the molar teeth (51,9%); the most position of missing tooth have enough bone for dental implants (87,3%), time of tooth loss and bone status in the position of tooth loss are related to each other (p < 0,01). Diameter and length of implant usually used 4.0 – 6.0 mm (63,7%) and 8.5 – 13.0 mm (83,3%). 4. Conclusion: Clinical and X ray features of edentulous patients has an important role in determining the type of implants and treatment planning of dental implants. Key words: Loss of permanent teeth, X ray and clinical features, Dental implant.

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Dental implant placement with inferior alveolar nerve repositioning in severely resorbed mandibles: a retrospective multicenter study of implant success and survival rates, and lower lip sensory disturbances

International Journal of Implant Dentistry ◽

10.1186/s40729-021-00334-x ◽

2021 ◽

Vol 7 (1) ◽

Author(s):

George Deryabin ◽

Simonas Grybauskas

Keyword(s):

Dental Implants ◽

Dental Implant ◽

Healing Process ◽

Survival Rates ◽

Inferior Alveolar Nerve ◽

Reliable Technique ◽

Lower Lip ◽

Neurosensory Disturbances ◽

Sensory Disturbances

Abstract Background The purpose of this study was to analyze medium-to-long-term implant success and survival rates, and lower lip sensory disturbance after placement of dental implants with simultaneous inferior alveolar nerve (IAN) repositioning. Methods Fifteen patients (3 men, 12 women) treated in two centers were included in this retrospective study. The ages of the participants ranged from 19 to 68. A total of 48 dental implants were placed in 23 posterior mandibular segments simultaneously with IAN transposition or lateralization. The residual bone above the IAN ranged from 0.5 to 7.0 mm. Crestal bone changes were measured using cone beam computed tomography (CBCT) images. Disturbance of the IAN was evaluated subjectively using a modified questionnaire. Results The healing process was uneventful in fourteen patients. In one patient, spontaneous fracture of the operated mandible occurred on tenth day after the surgery. The implant in the fracture line was removed at the time of open reduction and fixation. One more implant was lost after 5 years of loading. Therefore, the overall dental implant survival rate was 95.8%, whereas all implants in function were judged as successful after a follow-up period of 1 to 10 years. Transient neurosensory disturbances (ND) were observed in all patients who underwent IAN lateralization and IAN transposition. At follow-up times of 3 years, 5 years, and 10 years, weak hypoesthesia remained in two subjects treated with IAN transposition. None of the patients developed neuropathic pain after the procedure. Conclusions Within the limitations of this study, we conclude that reconstruction of severely resorbed mandibles with dental implants in conjunction with IAN repositioning is an effective and reliable technique. Although neurosensory disturbances are the most common complication after surgery, they tend to resolve over time. Advanced surgical skills are required to perform this technique.

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Clinical long-term and patient-reported outcomes of dental implants in oral cancer patients

International Journal of Implant Dentistry ◽

10.1186/s40729-021-00373-4 ◽

2021 ◽

Vol 7 (1) ◽

Author(s):

Eik Schiegnitz ◽

Lena Katharina Müller ◽

Keyvan Sagheb ◽

Lisa Theis ◽

Vahide Cagiran ◽

...

Keyword(s):

Radiation Therapy ◽

Oral Cancer ◽

Cancer Patients ◽

Dental Implants ◽

Survival Rates ◽

Implant Survival ◽

Implant Placement ◽

Patient Reported ◽

Oral Cancer Patients

Abstract Background and purpose The aim of this clinical study was to investigate the clinical long-term and patient-reported outcome of dental implants in patients with oral cancer. In addition, analysis of the influence of radiation therapy, timing of implant insertion, and augmentation procedures on implant survival was performed. Material and methods This retrospective study investigated the clinical outcome of 711 dental implants in 164 oral cancer patients, inserted by experienced surgeons of the Department of Oral and Maxillofacial Surgery, University Medical Center Mainz, Germany. Oral health-related quality of life (OHRQoL) was evaluated. Results Cumulative 5-year and 10-year implant survival rates for all included implants were 87.3% and 80.0%. Implants placed straight after ablative surgery (primary implant placement) and implants placed after completing the oncologic treatment (secondary implant placement) showed a comparable implant survival (92.5% vs. 89.5%; p = 0.635). Irradiation therapy had no significant influence on implant survival of secondary placed implants (p = 0.929). However, regarding implant site (native bone vs. augmented bone) and radiation therapy (non-irradiated bone vs. irradiated bone), implants inserted in irradiated bone that received augmentation procedures showed a statistically significant lower implant survival (p < 0.001). Patients reported a distinct improvement in OHRQoL. Conclusions Promising long-term survival rates of dental implants in patients after treatment of oral cancer were seen. In addition, patients benefit in form of an improved OHRQoL. However, bone augmentation procedures in irradiated bone may result in an impaired implants’ prognosis.

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Accuracy, Labor-Time and Patient-Reported Outcomes with Partially versus Fully Digital Workflow for Flapless Guided Dental Implants Insertion—A Randomized Clinical Trial with One-Year Follow-Up

Journal of Clinical Medicine ◽

10.3390/jcm10051102 ◽

2021 ◽

Vol 10 (5) ◽

pp. 1102

Author(s):

Corina Marilena Cristache ◽

Mihai Burlibasa ◽

Ioana Tudor ◽

Eugenia Eftimie Totu ◽

Fabrizio Di Francesco ◽

...

Keyword(s):

Clinical Trial ◽

Randomized Clinical Trial ◽

Dental Implants ◽

Entry Point ◽

Angular Deviation ◽

Digital Workflow ◽

Position Information ◽

Patient Reported ◽

The Mean ◽

Edentulous Patients

(1) Background: Prosthetically-driven implant positioning is a prerequisite for long-term successful treatment. Transferring the planned implant position information to the clinical setting could be done using either static or dynamic guided techniques. The 3D model of the bone and surrounding structures is obtained via cone beam computed tomography (CBCT) and the patient’s oral condition can be acquired conventionally and then digitalized using a desktop scanner, partially digital workflow (PDW) or digitally with the aid of an intraoral scanner (FDW). The aim of the present randomized clinical trial (RCT) was to compare the accuracy of flapless dental implants insertion in partially edentulous patients with a static surgical template obtained through PDW and FDW. Patient outcome and time spent from data collection to template manufacturing were also compared. (2) Methods: 66 partially edentulous sites (at 49 patients) were randomly assigned to a PDW or FDW for guided implant insertion. Planned and placed implants position were compared by assessing four deviation parameters: 3D error at the entry point, 3D error at the apex, angular deviation, and vertical deviation at entry point. (3) Results: A total of 111 implants were inserted. No implant loss during osseointegration or mechanical and technical complications occurred during the first-year post-implants loading. The mean error at the entry point was 0.44 mm (FDW) and 0.85 (PDW), p ≤ 0.00; at implant apex, 1.03 (FDW) and 1.48 (PDW), p ≤ 0.00; the mean angular deviation, 2.12° (FDW) and 2.48° (PDW), p = 0.03 and the mean depth deviation, 0.45 mm (FDW) and 0.68 mm (PDW), p ≤ 0.00; (4) Conclusions: Despite the statistically significant differences between the groups, and in the limits of the present study, full digital workflow as well as partially digital workflow are predictable methods for accurate prosthetically driven guided implants insertion.

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