Prevalence of favourable anatomy for palatal emergence of an immediate implant in the maxillary central incisor post-extraction site.

2021 ◽  
Author(s):  
andoni jones ◽  
david chávarri-prado ◽  
markel diéguez-pereira ◽  
alejandro estrada-martínez ◽  
miguel beltrán-guijarro ◽  
...  
Keyword(s):  
Minimum Distance ◽  
Central Incisor ◽  
Anatomical Structures ◽  
3D Images ◽  
Maxillary Central Incisor ◽  
Implant Placement ◽  
Planning Software ◽  
Extraction Site ◽  
Immediate Implants ◽  
Immediate Implant

The purpose of this study was to determine the prevalence of favourable anatomy for palatal emergence of an immediate flapless implant in the maxillary central incisor post-extraction site. Implants were virtually placed into maxillary central incisor sites using 3D implant planning software. Following a strict implant placement criteria to keep a safety distance to the buccal plate and other anatomical structures, sockets where assessed to determine their suitability for a palatally emerging implant. From 321 patients included in this study, 62.3% presented a suitable socket anatomy for an immediate implant to be placed with the angulation for a screw retained crown. In 29% of the cases, the implants had to be labially tilted to keep a minimum distance to the buccal plate. 8.7% were unsuitable for immediate implants due to anatomic limitations. The position and angulation for an implant  in  the  maxillary  central  incisor  socket  should  be  carefully  assessed  preoperatively  with  3D  images,  as  many  sites  will  not  be  candidates  for  a  palatal  emergence and thus, a  screw  retained  restoration.

scholarly journals Maxillary Incisive Canal Characteristics: A Radiographic Study Using Cone Beam Computerized Tomography

2019 ◽  
Vol 2019 ◽  
pp. 1-5 ◽  
Author(s):  
Penala Soumya ◽  
Pradeep Koppolu ◽  
Krishnajaneya Reddy Pathakota ◽  
Vani Chappidi
Keyword(s):  
Central Incisor ◽  
Anatomic Structure ◽  
Incisive Canal ◽  
Maxillary Central Incisor ◽  
Implant Placement ◽  
Mean Width ◽  
Immediate Implant ◽  
Thin Bone ◽  
Incisive Foramen ◽  
The Mean

Background. The incisive canal located at the midline, posterior to the central incisor, is an important anatomic structure of this area to be considered while planning for immediate implant placement in maxillary central incisor region. The purpose of the present study is to assess incisive canal characteristics using CBCT sections. Materials and Methods. CBCT scans of 79 systemically healthy patients, with intact maxillary incisors, were evaluated by two calibrated and independent examiners. Assessments included (1) mesiodistal diameter, (2) labiopalatal diameter, (3) length of the incisive canal, (4) shape of incisive canal, and (5) width of the bone anterior to the incisive foramen. Results. The mean width of the foramen labiopalatally and mesiodistally was 3.12 ± 0.94 mm and 3.23 ± 0.98 mm, respectively. Mean canal length was 18.63 ± 2.35 mm and males have significantly longer incisive canal than females. The mean width of bone anterior to the incisive canal was 6.32 ± 1.43 mm. As age of the subjects increased, incisive foramen diameter and incisive canal length were found to be increased. Cylindrical shaped incisive canals were seen in most of the individuals followed by funnel shaped and hour-glass shaped canals, and banana-like canal is least prevalent type. Conclusion. The findings from the present study suggest that the diameter and length of incisive canal vary among different individuals and presence of very thin bone anterior to the canal would suggest that a pretreatment CBCT scan is a valuable tool to evaluate anatomic variations, morphology, and dimensions of incisive foramen before immediate implant placement in maxillary central incisor region.

scholarly journals Contribution of the PDL to Osteotomy Repair and Implant Osseointegration

2017 ◽  
Vol 96 (8) ◽  
pp. 909-916 ◽  
Author(s):  
X. Pei ◽  
L. Wang ◽  
C. Chen ◽  
X. Yuan ◽  
Q. Wan ◽  
...  
Keyword(s):  
Bone Formation ◽  
Titanium Implants ◽  
Multiple Time ◽  
New Bone Formation ◽  
Extraction Socket ◽  
Minimally Invasive Surgical ◽  
Implant Placement ◽  
Extraction Site ◽  
Immediate Implants ◽  
Immediate Implant

Our objective was to clarify the fate of the periodontal ligament (PDL) retained in the socket after tooth extraction, then determine if this tissue contributed to the osseointegration of “immediate” implants placed in these fresh extraction sockets. Mice underwent maxillary first molar extraction, the residual PDL was removed by an osteotomy, and titanium implants were placed. The osteotomy was created in such a way that the palatal surface was devoid of PDL remnants while the buccal, mesial, and distal surfaces retained PDL fibers. At multiple time points after surgery, tissues were analyzed using a battery of molecular, cellular, and histomorphometrical assays. We found that PDL remnants mineralized and directly contributed to new bone formation in the extraction site. Compared with regions of an extraction site where the PDL was removed by osteotomy, regions that retained PDL fibers had produced significantly more new bone. Around immediate implants, the retained PDL remnants directly contributed to new bone formation and osseointegration. Thus, we conclude that PDL remnants are inherently osteogenic, and if the tissue is healthy, it is reasonable to conclude that curetting out an extraction socket prior to immediate implant placement should be avoided. This recommendation aligns with contemporary trends toward minimally invasive surgical manipulations of the extraction socket prior to immediate implant placement.

scholarly journals Immediate implant placement in the maxillary central incisor region: A case report

2012 ◽  
Vol 56 (1) ◽  
pp. 47-52
Author(s):  
Hideshi Sekine ◽  
Tatsuo Taguchi ◽  
Miki Yamagami ◽  
Fumiyori Matsuzaki ◽  
Takuya Takanashi ◽  
...  
Keyword(s):  
Case Report ◽  
Central Incisor ◽  
Maxillary Central Incisor ◽  
Implant Placement ◽  
Immediate Implant

scholarly journals Five-Year Follow-up of an Immediate Implant Placement in the Aesthetic Zone

2018 ◽  
Vol 2 (2) ◽  
pp. 76-79
Author(s):  
Bhageshwar Dhami ◽  
Priti Shrestha
Keyword(s):  
Alveolar Bone ◽  
Treatment Time ◽  
Maxillary Central Incisor ◽  
Implant Placement ◽  
Surgical Extraction ◽  
Immediate Implants ◽  
Tissue Changes ◽  
Immediate Implant ◽  
The Aesthetic

Immediate implants are placed in the site of surgical extraction of the tooth to be replaced. The percentage success of such procedures varies among authors from 94-100%. Immediate implant placement is most commonly indicated when tooth extraction is done with pathologies not amenable to treatment. The advantages include reduced post-extraction alveolar bone resorption, shortened treatment time, and the avoidance of a second surgical intervention with regard to delayed implantation. This report describes a case of immediate implant placed in a maxillary central incisor followed by evaluation of soft and hard tissue changes occurring during post-operative period with a follow-up at five years.

scholarly journals Diagnosis and treatment of extraction sockets in preparation for implant placement: report of three cases

2008 ◽  
Vol 19 (2) ◽  
pp. 159-164 ◽  
Author(s):  
Márcio José Rodrigues Barcelos ◽  
Arthur Belém Novaes Júnior ◽  
Marcio Baltazar Conz ◽  
Nassin David Harari ◽  
Guaracilei Maciel Vidigal Júnior
Keyword(s):  
Bone Defect ◽  
Root Resorption ◽  
Case Reports ◽  
Receptor Site ◽  
Wall Defect ◽  
Implant Placement ◽  
Immediate Implants ◽  
Immediate Implant ◽  
Defect Morphology ◽  
Subsequent Intervention

This article addresses diagnostic parameters that should be assessed in the treatment of extraction sockets with dental implant placement by presenting three case reports that emphasize the relevance of the amount of remaining bone walls. Diagnosis was based on the analysis of clinical and radiographic parameters (e.g.: bone defect morphology, remaining bone volume, presence of infections on the receptor site). Case 1 presents a 5-wall defect in the maxillary right central incisor region with severe root resorption, which was treated with immediate implant placement. Cases 2 and 3 present, respectively, two- and three-wall bone defects that did not have indication for immediate implants. These cases were first submitted to a guided bone regeneration (GBR) procedure with bone graft biomaterial and membrane barriers, and the implants were installed in a second surgical procedure. The analysis of the preoperative periodontal condition of the adjacent teeth and bone defect morphology is extremely important because these factors determine the choice between immediate implant or GBR treatment followed by implant installation in a subsequent intervention.

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

2018 ◽  
Vol 2018 ◽  
pp. 1-5 ◽  
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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