A 7-year Follow-up of 93 Immediately Loaded Titanium Dental Implants

Abstract Recently, several experimental and clinical investigations found that immediately loaded implants obtained satisfactory levels of osseointegration with high success percentages. Only a few long-term studies of immediately loaded implants have been reported in the literature. The aim of this study was a 7-year clinical and radiographic follow-up of 93 immediately loaded dental implants in human patients. Eleven patients were consecutively enrolled in this study. A total of 7 full and 9 partial edentulous arches were rehabilitated. Patients presented a completely edentulous mandible (n = 6), a completely edentulous maxilla (n = 1), mandibular posterior edentulous areas (n = 5), or a posterior maxillary edentulous area (n = 1). Patients were rehabilitated with a bar and an overdenture (n = 4), a provisional prosthesis of 3 to 12 elements (n = 11), or a metal-ceramic bridge of 10 elements (n = 1). A total of 93 implants were inserted and loaded within a 24-hour time frame. Six implants failed in the first year after loading. No more failures were observed in the following 6 years, and all the other implants were well integrated from a clinical and radiographic point of view. The cumulative success rate at 7 years was 93.5%, and the prostheses survival rate was 98.5%. The mean marginal bone loss was 0.6 mm after the first year and 1.1 mm at the 7-year evaluation. Primary stability is one of the most important parameters in immediately loaded implants because it avoids micromotion at the bone-implant interface. Four of the 6 failures in our patients occurred in partially edentulous patients; an excessive load applied to these small bridges could be the reason for the failure. Also, the bone quality is important, for 3 of our failed implants had been inserted in D3 bone. Our clinical and radiographic results have shown that these immediately loaded implants have remained osseointegrated for a long period. Our results point to the possibility of using the immediate loading technique in selected and well-informed cases.

Download Full-text

Implant Stability Changes for a Single Implant Mandibular Overdenture

European Journal of Dentistry ◽

10.1055/s-0041-1736416 ◽

2021 ◽

Author(s):

Karim Fouda ◽

Ahmed Fahmy ◽

Khaled Aziz ◽

Marwa Abdel Aal ◽

Amr Naguib ◽

...

Keyword(s):

Study Groups ◽

First Year ◽

Implant Stability ◽

Edentulous Mandible ◽

Significant Difference ◽

Edentulous Patients ◽

Mandibular Overdenture ◽

To Receive ◽

Single Implant

Abstract Objectives To compare the changes in implant stability for the nonsubmerged and submerged protocols for a single-implant retained mandibular overdenture using Cendres and Metaux Locator attachment throughout a 24-month follow-up. Materials and Methods Eighty edentulous patients who were seeking to install a single implant in the midline of the completely edentulous mandible. At the day of implant installation, patients were randomized into two groups using sealed envelopes: the nonsubmerged and submerged groups. After 3 months of healing period, randomization using sealed envelopes was performed and patients were randomized to receive the Cendres and Metaux Locator attachment. The periotest readings were recorded using the Periotest M device, every 3 months for the first year and annually in the second year. The scope of this clinical trial focused only on results of the Cendres and Metaux attachment. Statistical Analysis The Mann–Whitney U-test was used for comparison between study groups for independent samples. Two-sided p-values less than 0.05 were considered statistically significant. Results There was no statistically significant difference between the mean periotest readings of both groups throughout the 24-month follow-up. Both groups showed an improvement in mean periotest readings with the submerged group tending to show greater stability at 6, 12, and 24-month follow-ups. Conclusions The nonsubmerged and the submerged healing protocols resulted in reliable periotest readings with the submerged group showing greater improvement than the nonsubmerged, although this improvement is nonsignificant when using the Cendres and Metaux attachment for a single mandibular overdenture.

Download Full-text

Implant Treatment by Guided Surgery Supporting Overdentures in Edentulous Mandible Patients

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph182211836 ◽

2021 ◽

Vol 18 (22) ◽

pp. 11836

Author(s):

Eugenio Velasco-Ortega ◽

Alvaro Jiménez-Guerra ◽

Ivan Ortiz-Garcia ◽

Nuno Matos Garrido ◽

Jesús Moreno-Muñoz ◽

...

Keyword(s):

Clinical Outcomes ◽

Previous History ◽

Marginal Bone Loss ◽

Guided Surgery ◽

Early Loading ◽

Edentulous Mandible ◽

History Of ◽

Cone Beam Computerized Tomography ◽

Edentulous Patients

Introduction: This study aimed to show the clinical outcomes of implants inserted by guided surgery supporting mandibular overdentures in edentulous patients. Patients and methods: Mandibular edentulous patients were diagnosed with an oral examination, cone-beam computerized tomography, and diagnostic casts for intermaxillary relations and treated with overdentures over two implants by guided surgery. After flapless surgery, implants were early loaded with an overdenture at 6 weeks. Results and discussion: Fourteen patients (nine females and five males) were treated with 28 implants. Four patients (28.6%) had a previous history of periodontitis. Five patients (35.7%) were smokers. Nine patients (64.3%) suffered from systemic diseases (i.e., diabetes, cardiovascular diseases). The clinical follow-up of the study was 44.7 ± 31.4 months. Clinical outcomes showed a global success of 100% of implants. Fourteen overdentures were placed in the patients over the implants. Mean marginal bone loss was 1.25 mm ± 0.95 mm. Four patients (28.6%) showed some kind of mechanical prosthodontic complications. Six implants (21.4%) were associated with peri-implantitis. Conclusions: This study indicates that treatment of mandibular edentulous patients with overdentures by guided surgery and early loading of implants placed appears to be a successful implant protocol.

Download Full-text

Long-Term Study of Dental Implants Placed into Alveolar Cleft Sites

The Cleft Palate-Craniofacial Journal ◽

10.1597/06-095.1 ◽

2007 ◽

Vol 44 (4) ◽

pp. 444-447 ◽

Cited By ~ 29

Author(s):

Yoshiro Matsui ◽

Kohsuke Ohno ◽

Akiko Nishimura ◽

Tatsuo Shirota ◽

Syutaku Kim ◽

...

Keyword(s):

Dental Implants ◽

Bone Grafting ◽

Survival Rates ◽

Surface Characteristics ◽

Titanium Implants ◽

First Year ◽

Marginal Bone Loss ◽

Long Term Study

Objective: To evaluate the long-term prognosis of dental implants placed into cleft sites after bone grafting in a relatively large number of cases in order to clarify the usefulness of the modality. Patients: Forty-seven patients with unilateral (dental, n = 32) or bilateral (n = 15) clefts of the alveolar process were included in this study. Interventions: A total of 71 implants, including smooth- or rough-surface titanium, and hydroxyapatite (HA)-coated implants, were placed after bone grafting from the anterior iliac crest and/or mandible. The placed implants were 13 to 15 mm in length. Main outcome: The follow-up period was from 21 to 120 months (average = 60 months). Implant survival rates were calculated as cumulative survival. Marginal bone loss (MBL) from the implant shoulder was examined, with statistical analyses performed on the influence of simultaneous bone graft and surface characteristics. Results: At the end of the clinical follow-up period, all implants except one were in situ and stable. Thus, the overall survival rate was 98.6% at the end of the first year and remained the same until the end of observation. Titanium implants with smooth surfaces had the lowest MBL with almost negligible regression slope, although some implants had relatively high MBL by the end of the first year. Conclusions: Implant therapy in the cleft site offers a reliable option for patients. Particular attention should be focused preoperatively on whether bone volume can provide primary implant stability.

Download Full-text

Implant Stability Changes for Nonsubmerged and Submerged Protocols for a Single Implant Mandibular Overdenture Using Ball Attachment

International Journal of Dentistry ◽

10.1155/2021/8269197 ◽

2021 ◽

Vol 2021 ◽

pp. 1-11

Author(s):

Ahmed Salah ◽

Karim Foda ◽

Mohamed Farouk Abdalla ◽

Marwa Abdel Aal ◽

Amr Naguib ◽

...

Keyword(s):

Study Groups ◽

First Year ◽

Implant Stability ◽

Edentulous Mandible ◽

Significant Difference ◽

The Mean ◽

Edentulous Patients ◽

Mandibular Overdenture ◽

Single Implant

Objectives. To compare the changes in implant stability for the nonsubmerged (NS) and submerged (S) protocols for the single implant retained mandibular overdenture using ball attachment throughout a 24-month follow-up. Materials and Methods. Eighty completely edentulous patients were seeking to improve retention of their lower complete denture by installing a single implant in the midline of the completely edentulous mandible. At the day of implant installation, patients were randomized into 2 groups using sealed envelopes: the nonsubmerged (NS) and submerged (S) group. After a 3-month healing period, all patients were randomized using sealed envelopes into ball attachment and CM-LOC attachment. The Periotest readings (PTV) was recorded using the Periotest M device and was recorded every 3 months for the first year and then annually in the second year. The scope of this clinical trial focused only on results of the ball attachment. The Mann–Whitney U test was used for comparison between study groups for independent samples. Two-sided p values less than 0.05 was considered statistically significant. Results. There was no statistically significant difference in the mean change in PTV reading between the NS and S group at the different follow-up intervals. Initially, at the day of pickup (baseline) and 3-month follow-up, the mean PTV reading for the NS was greater than that of the S group (−4.471 ± 1.489, −4.391 ± 1.4727 ( p = 0.913 )), while the S group has shown a greater improvement in PTV than the NS group after 6-month follow-up and continued throughout the 24-month follow-up (−5.730 ± 1.7804, −50855 ± 1.2581 ( p = 1 )). Conclusion. Both the nonsubmerged and the submerged healing protocol have shown reliable Periotest readings using ball attachment for a single implant retained overdenture. The submerged group has resulted in a greater improvement in Periotest readings after the 12- and 24-month follow-up period when compared to the nonsubmerged group although this improvement was not statistically significant.

Download Full-text

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.

Download Full-text

Mandibular Full-Arch Rehabilitation over 3 Straight Immediately Loaded Implants: 8 Years of Follow-Up

Case Reports in Dentistry ◽

10.1155/2019/4648959 ◽

2019 ◽

Vol 2019 ◽

pp. 1-5

Author(s):

Márcio de Carvalho Formiga ◽

Magda Nagasawa ◽

Jamil Awad Shibli

Keyword(s):

Case Report ◽

Dental Implants ◽

Treatment Option ◽

Successful Treatment ◽

Treatment Plan ◽

Adequate Treatment ◽

The Past ◽

Technical Complications ◽

Edentulous Patients

Mandibular full-arch restoration is a good and successful treatment option for totally edentulous patients. In the past years, several studies have described the placement of 4 to 6 implants to restore this type of case; however, an option using 3 dental implants placed in strategic and specific positions could also be an alternative. Therefore, this case report describes a full-arch rehabilitation on 3 straight, immediately loaded implants after 8 years of follow-up. The restoration presented no biological or technical complications during this follow-up period, showing that an adequate treatment plan was able to allow good results using this treatment option.

Download Full-text

Rehabilitation of an Extremely Resorbed Edentulous Mandible by Short and Narrow Dental Implants

Case Reports in Dentistry ◽

10.1155/2018/7597851 ◽

2018 ◽

Vol 2018 ◽

pp. 1-8 ◽

Cited By ~ 1

Author(s):

Ines Kovacic ◽

Sanja Persic ◽

Josip Kranjcic ◽

Nikolina Lesic ◽

Asja Celebic

Keyword(s):

Dental Implants ◽

Bone Volume ◽

Bone Augmentation ◽

Marginal Bone Loss ◽

Mandibular Bone ◽

Bone Width ◽

Edentulous Mandible ◽

Bone Height ◽

Observation Period

Serious consequences of long-term complete denture wearing may be extreme residual ridge atrophy and a reduced area of keratinized oral mucosa of a denture-bearing area. This paper presents five clinical cases of extreme mandibular ridge atrophy, rehabilitated by means of mandibular overdentures retained by short mini dental implants. The patients had a reduced mandibular bone volume in the interforaminal region, bone height less than 10 mm, and buccolingual bone width less than 4 mm. In order to avoid bone augmentation, patients received four short mini dental implants (MDIs) (6 or 8 mm long; 2.0 or 2.5 mm wide) for the support of mandibular overdentures, which is a new rehabilitation option. After insertion, the MDIs were early loaded with new mandibular overdentures reinforced with the CoCr framework. The patients have been wearing their overdentures for 2 years. One MDI broke during insertion and a new one was added. One patient lost one MDI but successfully continued to wear the overdenture retained by the remaining three MDIs. Mean marginal bone loss (MBL) was 0.20 ± 0.19 mm. Patients significantly improved their OHRQoL and chewing function by reducing the summary scores of the OHIP-14 and the chewing function questionnaires. The improvements remained unchanged throughout the observation period.

Download Full-text

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.

Download Full-text