Molar Septum Expansion with Osseodensification for Immediate Implant Placement, Retrospective Multicenter Study with Up-to-5-Year Follow-Up, Introducing a New Molar Socket Classification

The ideal positioning of immediate implants in molar extraction sockets often requires the osteotomy to be in the interradicular septum, which can be challenging in some cases, with traditional site preparation techniques. Patients who had undergone molar tooth extraction and immediate implant placement at five different centers, and followed up between August 2015 and September 2020, were evaluated. Inclusion criteria were use of the osseodensification technique for implant site preparation. The primary outcome was septum width measurement pre-instrumentation and osteotomy diameter post expansion. Clinical outcomes, such as implant insertion torque (ISQ) and implant survival rate, were also collected. A total of 131 patients, who received 145 immediate implants, were included. The mean overall septum width at baseline was 3.3 mm and the mean osteotomy diameter post instrumentation was 4.65 mm. A total of ten implants failed: seven within the healing period and three after loading; resulting in a cumulative implant survival rate of 93.1%. This retrospective study showed that osseodensification is a predictable method for immediate implant placement with interradicular septum expansion in molar extraction sockets. Furthermore, it allowed the introduction of a new molar socket classification. In the future, well-designed controlled clinical studies are needed to confirm these results and further explore the potential advantages of this technique.

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The success of immediate implant placement with Zero insertion torque

10.21203/rs.2.17167/v1 ◽

2019 ◽

Author(s):

Samy Aboelyazied Elian

Keyword(s):

Survival Rate ◽

Key Words ◽

Primary Stability ◽

Insertion Torque ◽

Torque Measurement ◽

Implant Survival ◽

Maxillary Bone ◽

Implant Placement ◽

Immediate Implant

Abstract Background The primary stability in immediate implant placement was considered one of the prerequisites for the achievement of good osseointgration. The insertion torque varies between cases depending on many factors and may goes down to Zero that may affect the prognosis of the implant especially in the soft maxillary bone. The aim of the study was to assess clinically the success&/or failure of immediate flapless implant placement in the maxilla with Zero insertion torque measurement with a follow up time ranging 2-4 years. Results: out of 780 analyzed, fourteen implants were placed in fresh extraction sockets for single rooted teeth in the maxilla and did not get primary stability (zero insertion torque). Their survival rate was 85.7%. Conclusions: The loss of torque during immediate implant placement to Zero may jeopardize the survival of the implants, but it may not be statistically significant with their failure and loss. The lack of certain conditions that are absent during their surgical installation and healing have the major effects on success. The implant primary stability is not an absolute prerequisite to osseointegration; however, it may affect the implant survival rate. Key words: 0 torque implant insertion, implant primary stability, loose implant, immediate implant survival, immediate implant placement.

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Immediate Implant Placement by Interradicular Bone Drilling before Molar Extraction: Clinical Case Report with One-Year Follow-Up

Case Reports in Dentistry ◽

10.1155/2018/6412826 ◽

2018 ◽

Vol 2018 ◽

pp. 1-5 ◽

Cited By ~ 1

Author(s):

Stuardo Valenzuela ◽

José M. Olivares ◽

Nicolás Weiss ◽

Dafna Benadof

Keyword(s):

Survival Rates ◽

Three Dimensional ◽

Primary Stability ◽

Bone Drilling ◽

Implant Placement ◽

Immediate Implants ◽

Immediate Implant ◽

One Year ◽

Molar Extraction

The placement of immediate implants in the posterior sector is a widespread procedure where the success and survival rates are similar to those of traditional protocols. It has several anatomical challenges, such as the presence of interradicular bone septa that hinder a correct three-dimensional positioning of the implant and may compromise primary stability and/or cause damage of neighboring structures. The aim of this article is to present the treatment and the one-year clinical follow-up of a patient who received immediate implant placement using an interradicular bone-drilling technique before the molar extraction.

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Neurosensory Function and Implant Survival Rate Following Implant Placement With or Without an Interposed Bone Graft Between the Implant and Nerve: Prospective Clinical Trial

The International Journal of Oral & Maxillofacial Implants ◽

10.11607/jomi.7543 ◽

2019 ◽

Vol 34 (6) ◽

pp. 1450-1456

Author(s):

Cleiton de Campos ◽

Carlos Francischone ◽

Neuza Assis ◽

Karina Devito ◽

Bruno Sotto-Maior

Keyword(s):

Clinical Trial ◽

Survival Rate ◽

Bone Graft ◽

Prospective Clinical Trial ◽

Implant Survival ◽

Implant Placement ◽

Implant Survival Rate

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Neurosensory function and implant survival rate following implant placement with nerve transpositioning: A case study.

Journal of Oral Science ◽

10.2334/josnusd.43.139 ◽

2001 ◽

Vol 43 (2) ◽

pp. 139-144 ◽

Cited By ~ 15

Author(s):

Minoru Hori ◽

Takako Sato ◽

Katsuhiko Kaneko ◽

Masahiro Okaue ◽

Mitsuhiko Matsumoto ◽

...

Keyword(s):

Survival Rate ◽

Implant Survival ◽

Implant Placement ◽

Implant Survival Rate

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Bone Spreader Technique: A Preliminary 3-Year Study

Journal of Oral Implantology ◽

10.1563/1548-1336-35.6.289 ◽

2009 ◽

Vol 35 (6) ◽

pp. 289-294 ◽

Cited By ~ 7

Author(s):

Renato Sussumu Nishioka ◽

Francisley Avila Souza

Keyword(s):

Survival Rate ◽

Invasive Procedure ◽

Insertion Torque ◽

Clinical Use ◽

Medullary Bone ◽

Cumulative Survival ◽

The Third ◽

Implant Placement ◽

Immediate Implant ◽

Preliminary Study

Abstract The purpose of this study was to observe the clinical outcome of bone spreading and standardized dilation of horizontally resorbed bone during immediate implant placement using a “screw-type” configuration of expansion and threadformers. Fifty-three patients were included in this study, and 41 edentulous areas in anterior and posterior maxillas were treated. Sixty-eight implants were placed using an insertion torque of at least 40 Ncm. Abutments were delivered 4 to 6 months after implant placement. The overall failure percentage was 4.41% (3 failures). A retrieved analysis of 1 implant removed at 3 years after placement demonstrated bone resorption down to the level of the third thread. The bone spreader technique is different from Summers' osteotome, both in clinical use and in armamentarium. The main advantage of the crest-expanding technique is that it is a less invasive procedure; the facial wall expands after the medullary bone is compressed against the cortical wall. Within the limits of this preliminary study, the cumulative survival rate for this method of implant placement is 95.58% at 3 years. This study confirms that a bone spreader used in the maxilla shows an unusually low failure rate after 3 years.

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Implant placement with sinus floor elevation via the lateral approach using only absorbable collagen sponge: 12-month post-loading radiographical outcomes and implant survival rate

Oral and Maxillofacial Surgery ◽

10.1007/s10006-020-00908-w ◽

2020 ◽

Author(s):

Gabriel Menassa ◽

Abdel Rahman Kassir ◽

Luca Landi ◽

Nada Bou Abboud Naaman ◽

Carole Chakar

Keyword(s):

Survival Rate ◽

Lateral Approach ◽

Collagen Sponge ◽

Implant Survival ◽

Sinus Floor Elevation ◽

Absorbable Collagen Sponge ◽

Implant Placement ◽

Implant Survival Rate ◽

Sinus Floor

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Five-Year Prospective Study on Implant Failure and Marginal Bone Remodeling Expected Using Bone Level Implants with Sandblasted/Acid-Etched Surface and Conical Connection

European Journal of Dentistry ◽

10.1055/s-0041-1739439 ◽

2022 ◽

Author(s):

Marco Tallarico ◽

Aurea Maria Immacolata Lumbau ◽

Silvio Mario Meloni ◽

Irene Ieria ◽

Chang-Joo Park ◽

...

Keyword(s):

Survival Rate ◽

Bone Remodeling ◽

Case Series ◽

Insertion Torque ◽

Implant Survival ◽

Bone Level ◽

The Mean ◽

Prospective Case Series ◽

Gingival Biotype

Abstract Objective The purpose of the present prospective, case-series study was to report implant survival rate and marginal bone remodeling expected 5 years after loading using dental implants placed in daily practice. Materials and Methods This research was designed as an open-cohort, prospective, case-series evaluation. Any partially or completely edentulous patient, scheduled to receive at least one bone level implant, was considered eligible for this study. Primary outcome measurements were: implant and prosthetic cumulative survival rate and any complications experienced up to the 5-year follow-up. Secondary outcome measures were: thickness of gingival biotype, implant insertion torque, implant stability quotient, and marginal bone loss (MBL). Results Ninety consecutive patients (34 males and 56 females, aged between 24 and 81 years old [mean: 53.2 ± 15.4]) with 243 inserted implants were followed for at least 5 years after loading (mean: 65.4 ± 3.1 months; range from 60 to 72). At the 1-year follow-up, no drop-outs were recorded, but 17 patients (18.9%) with 18 restorations (12.6%) delivered on 34 implants (14%) were lost at the 5-year examination. At the 5-year follow-up examination, six implants lost osseointegration (97.5%). In the same period, four prostheses failed (97.2%). Five complications were reported in five different patients (prosthetic success rate was 96.5%, at patient level). Five years after loading, the mean MBL was 0.41 ± 0.30 mm. The difference from the 1-year data was 0.04 ± 0.19 mm. A statistically significant higher MBL was found for smokers, and patients with thin gingival biotype. The mean implant insertion torque was 42.9 ± 4.8 Ncm (range from 15 to 45 Ncm). Two-hundred and three implants (83.5%) were inserted with an insertion torque ≥35 and ≤45 Ncm. Conclusions High implant survival and success rate could be expected with stable marginal bone remodeling up to 5 years after loading. Smoking and thin tissue biotype were the most important variabilities associated with higher MBL. Further research studies are needed to confirm these results.

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A Novel Approach to Preserve the Buccal Wall in Immediate Implant Cases: A Clinical Report

Journal of Oral Implantology ◽

10.1563/aaid-joi-d-11-00082 ◽

2013 ◽

Vol 39 (2) ◽

pp. 198-205 ◽

Cited By ~ 1

Author(s):

Manuel Neves ◽

André Correia ◽

Célia Coutinho Alves

Keyword(s):

Rotation Speed ◽

Site Preparation ◽

Clinical Report ◽

Implant Placement ◽

Novel Approach ◽

Immediate Implants ◽

Immediate Implant ◽

Implant Site Preparation

The aim of this article is to present a novel approach to preserve the buccal wall when performing immediate implants. After immediate implant site preparation, the socket is filled with Bio-Oss collagen and trimmed in a cone form to closely adapt to the buccal wall. Then, the implant is placed with low-rotation-speed condensing Bio-Oss collagen buccally. With this technique, the remodeling of buccal wall after immediate implant placement may be reduced.

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Contour Changes Following Immediate Placement of Ultra-Wide Implants in Molar Extraction Sockets without Bone Grafting

Journal of Clinical Medicine ◽

10.3390/jcm9082504 ◽

2020 ◽

Vol 9 (8) ◽

pp. 2504

Author(s):

André Hattingh ◽

Hugo De Bruyn ◽

Manù Van Weehaeghe ◽

Geert Hommez ◽

Stefan Vandeweghe

Keyword(s):

Bone Grafting ◽

Tooth Extraction ◽

Implant Placement ◽

Immediate Placement ◽

Immediate Implant ◽

The Mean ◽

One Year ◽

Molar Extraction

The aim was to evaluate ridge reduction and mucosal recession following immediate placement of ultra-wide implants in molar sockets, without bone grafting. Impressions were taken prior to tooth extraction, 4 months and 1 year after implant placement. The casts were digitized and compared. Mucosal recessions and horizontal ridge reduction were measured. A total of 16 implants were in the maxilla and 11 in the mandible. At the buccal aspect, there was a mean reduction of 0.94 mm after 4 months and 0.89 mm after one year (p = 0.933). At the palatal/lingual aspect, this was 1.09 mm after 4 months and 0.69 mm after 1 year (p = 0.001). After 1 year, a recession of 0.59 mm was measured at the zenith, 1.04 mm at the mesial and 0.98 mm at the distal papilla. The mean midfacial horizontal ridge reduction was 1.23 mm after 4 months and 1.45 mm after 1 year. At the midpalatal/midlingual aspect, the mean horizontal reduction was 1.43 mm after 4 months and 1.16 mm after 1 year. Immediate implant placement without bone grafting in the posterior jaw yields a significant horizontal ridge reduction and minor mucosal recession. Clinicians should anticipate the amount of ridge reduction and consider augmentation at the time of implant placement.

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