Single-piece Implants Research Articles

COMPARATIVE EVALUATION OF PERI-IMPLANT TISSUES AROUND EARLY LOADED VERSUS DELAYED LOADEDIMPLANTS

Aims and Objectives: This study compared and evaluated the peri-implant tissue alterations in single-piece implants that were loaded early versus delayed. To evaluate the differences in radiographic results and clinical characteristics between early and delayed loaded implants. Materials and Methods: Using radio visio graphs (RVGs), the current study aims to assess and compare the clinical and radiographic results of early loaded implants versus delayed loaded implants. Twenty sites in all, based on the kind of implant loading techniques, were randomly divided into two groups by flipping a coin, following the first screening and the patients who met the inclusion requirements. Ten sites with an early loading technique (GROUP 1) and ten sites with a delayed loading methodology (GROUP 2) were separated into two groups. In both groups, the Bioline single-piece implants were utilised. Results: The clinical parameters probing pocket depth, clinical attachment level, and width of the keratinized peri-implant mucosa were measured at baseline, 3 & 6 months. Changes in marginal bone loss were measured using RVG. To evaluate the alterations in marginal bone level, AUTO CAD was utilised. SPSS V.23 was employed for the purpose of data analysis. Using the Mann Whitney U test for intergroup comparison and Friedmans Two-way ANOVA for intragroup comparison, groups 1 and 2 were assessed on mesial and distal surfaces. Conclusion: Given the current studys constraints, the findings can be summed up as follows: early loaded implants performed better than delayed loaded implants in all clinical and radiographic measures from baseline to six months.

Evaluation of Long-Term Stability in Single-Piece Implant Systems: An Original Research.

Because of its integrated design and possible benefits over conventional two-piece systems, single-piece implant systems have grown in favor in the field of dental implantology. There is, however, still a dearth of information about their long-term stability and clinical results. The purpose of this study was to assess the clinical results, such as implant survival rates, peri-implant tissue health, and marginal bone levels, to determine the long-term stability of single-piece implant systems. About 127 individuals who got single-piece implants at the tertiary care center were the subject of a retrospective analysis. Standardized procedures were followed for implant implantation, and patients were monitored for at least five years afterward. Through radiographic analysis and clinical tests, clinical indicators such as marginal bone levels, peri-implant tissue health, and implant survival rates were evaluated. With low marginal bone loss and good peri-implant tissue health, the research showed a high implant survival rate of 96.5%. A statistical study revealed significant relationships between marginal bone loss (P < 0.01), peri-implant tissue health (P < 0.05), and implant survival. In this study, single-piece implant devices showed good long-term durability and clinical results. These results confirm its effectiveness as a dependable dental rehabilitation alternative, highlighting the significance of preserving the health of the peri-implant tissue and reducing marginal bone loss to guarantee implant success.

Evaluation of Failure in Single-Piece Implant Systems: A One-Year Follow-Up Study.

This study's goal was to assess the failure rate and peri-implant complications of single-piece implant systems over the course of a one-year follow-up. Patient records were examined retrospectively. 150 single-piece dental implants were analyzed. Clinical results, implant features, and demographic information were gathered. Implant failure, which is characterized as the total loss of osseointegration, served as the key outcome indicator. Patient satisfaction and peri-implant problems were secondary outcomes. Data analysis employed descriptive statistics. During the one-year follow-up period, the failure rate for single-piece implant systems was 6.7%. The two main factors leading to implant failure were found to be poor osseointegration (60%) and biomechanical overload (40%). 20% of the cases had peri-implant problems, such as peri-implantitis. 85% of the panelists felt that single-piece implants had satisfied their patients. A 6.7% failure rate in single-piece implant systems was seen in this one-year follow-up investigation. The major causes of implant failure were found to be poor osseointegration and biomechanical loading. In 20% of the cases, peri-implant problems such as peri-implantitis, were noted. There was great patient satisfaction. These results highlight the significance of regulating occlusal forces, optimizing osseointegration, and applying preventive measures to ensure the long-term viability of single-piece implant systems.

Customer Complaints as an Evaluation Tool Assessing the Performance and Clinical Suitability of Different Implant Design

During an assessment of dental implant design effectiveness, most of the data are acquired from clinical or animal studies performed by researchers and clinicians. In order to represent scientific significance, those studies have to be properly designed, focusing on a precisely chosen aspect with inclusion and exclusion criteria. The last of these, especially, can create major limitations for the data collection. In order to create a reliable, complete overview of different implant suitability, the data from a single customer can also be a valuable input in dental science. The aim of the study was to compare if the type of implants returned corresponded with sales figures for this type of implant or if there were any differences in the number of complaints. Customer complaints regarding dental implants produced by the same manufacturer acquired from dental professionals from different countries were evaluated over a fixed period of time. After having compared the number of complaints regarding implants to the number of sold implants, it was evident that single-piece implants and those with a polished surface used for immediate loading were significantly less likely to generate customer complaints than conventional two-stage systems (p &lt; 0.001) with rough surfaces and larger endosseous diameters.

Evaluation of Immediate Functional Loading with Single Piece Implants

Introduction: In recent years, implantology has increasingly advocated the concept of immediate loading, even with single implants. It is defined as the placement of a prosthetic restoration within 48-72 hours after implant placement. Among the other advantages of immediate loading like overall treatment reduction in timing, with function, cosmetic and psychological benefits for the patient. This case described a new surgical concept and a technique to fabricate screw-retained provisional crowns for immediate loading of free-standing single tooth implants. Hence the aim of this study is to evaluate immediate functional loading with single piece implants Materials and Methods: For rehabilitation with basal implants in sites after immediate extraction, a 2-mm twist drill, the first cortex (alveolar) was drilled and then drilling was continued till the basal cortex (nasal floor/sinus floor/lingual cortex/pterygoid bone), which was perceived as a dip. For rehabilitation with compressive screw implants in healed edentulous sites, the compression screw implants in the upper and lower jaw were inserted with the primary aim of achieving stability through compression of trabecular bone along the vertical (endosseous) axis of the implant. Frequency tables and chi square tests were used to analyze the data. Results: There were 30 patients with 76 implants present and assessed for this study. The mean age of the participants was 47.43±16.93. In the study participants, 30% of the participants had hypertension, 20% had diabetes mellitus and 20% had smoking habit. BCS and Compressive type of implants were both used in the study. In 51.32% sites, BCS implants were used and 48.68% sites Compressive type implants were used depending on the clinical situation. For the success of the implant, many criteria was assessed such as Implant stability quotient, mid-buccal gingival level and inter proximal gingival papilla, absence of complications (pain, discomfort, infection, bone loss and mobility). Results showed that there was a significant association found between diabetes mellitus with mobility, bone loss and discomfort. Contrastingly there was no association between smoking habit and any of the complications affecting the success of the implant. This showed that systemic disease plays a major role in the success of the implants. Conclusion: The high cumulative implant survival rate for the devices and the technology of the Strategic Implant® indicates (within the limitations of this study) that the immediate functional loading concept with cortically anchored implants or implants providing corticalization of spongious bone for the rehabilitation of partially edentulous segments and for single-tooth replacement in maxilla and mandible can be a viable concept even in cases where extractions of teeth were done simultaneously. Keywords: Single implants, immediate loading, Compressive implants, implants, BCS implants.

A 3-Year Prospective Clinical Study to Evaluate the Outcome of Single-Piece Implant-Prosthetic Complex after Immediate NonFunctional Loading in the Maxillary Anterior and Mandibular Posterior Areas in Varied Bone Densities.

Context:There is limited evidence on the outcome of single-piece implant-prosthetic complex after immediate nonfunctional loading in varied bone densities.Aim:The aim of this study was to report the outcome of single-piece implant-prosthetic complex with a novel cervical platform design in the anterior and posterior jaws 3 years after loading.Setting and Design:Prospective clinical study.Materials and Methods:The present study included placement of 90 single-piece implants in the anterior and the posterior jaws in varied bone densities. After immediate loading, survival and marginal bone loss was recorded at regular intervals.Statistical Analysis:Independent sample t-test and paired t-test were done (P = 0.05).Results:Group I, annual marginal bone loss at the end of one, 2 and 3 years was 0.21, respectively, in both bone densities. Group II, annual marginal bone loss in D2 regions was 0.75,0.38 and 0.18; 0.64, 0.28 and 0.18 in D3 regions at the end of 1, 2, and 3 years, respectively. Group I showed no statistically significant difference in marginal bone loss between D2 and D3 bone annually in contrast to Group II. Intragroup comparisons of mean between baseline and various time intervals showed statistically significant bone loss in both bone densities.Conclusion:Three years after loading, single-piece implants with the novel cervical platform design provided survival rates of 93% in the maxillary anteriors and 91% in the mandibular posteriors. D3 bone showed more marginal bone loss than D2 bone.

Clinically Based Classification and Positioning Indication for Single-Piece Compressive Implants Placement in Regard to Extraction Socket.

(1) Background: Dental implantology has been rapidly developing over the last decades. The introduction of new materials, surface modifications and implant designs has brought the need to rethink and systematize our knowledge regarding dental implants. Thus, the aim of this paper is to introduce a new classification and implant positioning indications that can be used to maximize the survival rate and the aesthetic outcome of single-piece compressive screw implants. (2) Materials and methods: This classification was based on a multicenter clinical and radiological observation of 151 patients, in whom 1057 implants were placed with a success rate of 98.5% (1041). The follow-up period was up to 82 months with a mean of 22.34 months. (3) Results: it seems that, in the case of single-piece implants, diameter and length of the implant have influence on their survival rate, whereas smoking and hypertension do not. (4) Conclusions: this paper provides clinicians with comprehensive information about the rationale, criteria and implementation of the new classifications based on a large number of implants and long-term observations.

Zygomatic approach with single-piece implants: A technical note.

Single piece zygomatic implant, or a remote anchorage implant, is an effective tool for the rehabilitation of the atrophic/resected jaws with least postoperative complications such as screw loosening, screw fractures, bone loss, mucositis, and peri implantitis. The aim of this paper was to summarize a technique for the use of a zygomatic approach for single piece implants. We used the key-words 'single piece implants” and the search revealed 700 papers in the PubMed database. After screening through the abstracts, we selected 50 articles that we finally reviewed. Zygomatic fixtures avoid the grafting procedures and cantilever situation, restoration of atrophic or postablative jaws are completed with immediate loading. It is advisable placement of zygomatic implant flapless with surgical guide, but the author believes more on the tactile perception and when the splint is at mucosal or bone level, a small change in orientation will lead the dramatic error in desired angulation leading to unwanted complication.

Multiple pterygoid approach: A novel technique with single-piece implants.

The intended target site to engage a fixture distal into the tuberosity is the pterygoid apophysis that comprises the maxillary tuberosity, pyramidal process of the palatine bone, and the pterygoid process of the sphenoid bone. Pterygoid implants are incorrectly labeled in literature owing to the fact that they are actually root form conventional implants and should hence be termed as 'tubero-pterygoid implant'. An implant engaging the pterygoid apophysis/pillar taking distal maxillary support and avoiding successfully the cantilever situation is called a pterygoid implant. It essentially does not acquire primary with support of distal maxilla initially from the tuberosity. Instead, it makes its way into the apophysis and sometimes via a transsinus approach. A tubero-pterygoid implant, because of the root form screw shape fixture that is wide at the crestal aspect and converging toward the apex, takes the primary support from the tuberosity and engages the pterygoid pillar apically, thus allowing more bone to implant contact but has its limitation in deficient/atrophied tuberosity.

Immediate Restoration of Single-Piece Zirconia Implants: A Prospective Case Series-Long-Term Results after 11 Years of Clinical Function.

Objectives: The aim of this prospective case series was to evaluate single-piece zirconia implants restored with lithium disilicate CAD/CAM crowns through a long-term follow-up. Methods: In this trial, 20 one-piece zirconia implants were placed in 20 patients. Implants were restored (i) immediately with lithium disilicate CAD/CAM provisionals, and (ii) permanently four months after surgery. Patients were followed for 11 years. Clinical parameters and radiological measurements of the zirconia implants were assessed. For the statistical analysis, paired t-test was applied. Results: Four implants were counted as implant failure due to the loss of implant stability, resulting in a Kaplan–Meier survival rate of 80% up to 11 years. The mean bleeding on probing values were 19.1% (SD ± 13.1) and 18.2% (SD ± 17.6) 96 and 11 years after implant placement, respectively. The plaque index revealed a significant decrease over time (p < 0.001) with a value between 25.9% (SD ± 5.7) and 12.6% (SD ± 10.0) at baseline and 11-years follow-up respectively. The marginal bone level revealed a significant decrease 4, 8, and 11 years after implant insertion (p = 0.001, p = 0.019, and p = 0.027, respectively). Conclusions: Immediately loaded zirconia single-piece implants showed a suitable success rate in clinical and radiographic outcomes.

A Comparative Analysis of Implants Presenting Different Diameters: Extra-Narrow, Narrow and Conventional.

This study aimed at performing a comparative analysis of the fracture resistance of implants, evaluating extra-narrow, narrow, and regular implants. Four groups containing 15 implants each were evaluated. Group 1 (G1): single-piece extra-narrow implants; Group 2 (G2): single-piece narrow implants; Group 3 (G3): Morse taper narrow implants with solid abutments; Group 4 (G4): Morse taper conventional implants with solid abutments. The implants were tested using a universal testing machine for their maximum force limit and their maximum bending moment. After obtaining the data, the Shapiro–Wilk, ANOVA, and Tukey (p < 0.05) statistical tests were applied. Samples from all the groups were analyzed by scanning electron microscopy and Groups 3 and 4 were analyzed by profilometry. The means and the standard deviation values for the maximum force limit (N) and the maximum bending moment (Nmm) were respectively: G1:134.29 N (10.27); G2:300.61 N (24.26); G3:360.64 N (23.34); G4:419.10 N (18.87); G1:1612.02 Nmm (100.6); G2:2945 Nmm (237.97); G3:3530.38 Nmm (228.75); G4:4096.7 Nmm (182.73). The groups behaved statistically different from each other, showing that the smallest diameter implants provided less fracture resistance, both in the tensile strength tests and in the maximum bending moment between all groups. Furthermore, single-piece implants, with 2.5 mm and 3.0 mm diameters, deformed in the implant body region area, rather than in the abutment region.

A split-mouth clinico-radiographic comparative study for evaluation of crestal bone and peri-implant soft tissues in immediately loaded implants with and without platelet-rich plasma bioactivation.

Background. This study evaluated the viability of platelet-rich plasma for enhancement of osseous and associated soft tissue healing around single-piece implants, subjected to immediate loading and to compare it with a control site not treated with PRP. Methods. Twenty completely edentulous patients were selected and 2 one-piece implants with O-ball head were placed for mandibular overdenture. The implant on the right side was treated with PRP whereas the left side implant served as a control. All the cases were immediately loaded and marginal bone loss, probing depth, percussion, implant mobility and peri-implantitis were assessed and compared at 3, 6, 9 and 12 months. Results. Overall analysis of the results showed less marginal bone loss, probing depth, percussion, implant mobility and periimplantitis around implants treated with PRP; however, the results were insignificant statistically. Conclusion. PRP can be used as a viable treatment adjunct in immediately loaded one-piece implants.

Crestal Bone Changes around immediately loaded Single-piece Implants using Flap and Flapless Technique: A Radiographic Study

With the trend shifting toward the minimally invasive surgeries in implant surgery, the flapless technique of implant placement is gaining popularity among the implantologists. This study was done to assess the crestal bone loss level in flap and flapless surgery at follow-up periods of 0, 1, and 3 months. Patients presenting with missing teeth requiring dental implants for rehabilitation were included in the study. Implant placement was done in 10 patients with traditional flap technique, while in other 10 patients, flapless technique was performed after determining the availability of sufficient bone width with ridge mapping. Radiographical follow-up was done for 3 months at 0-, 1-, and 3-month intervals. It was observed that for most of the flapless cases, the bone loss settled at 1st thread or just below the implant collar after 3 months. It was seen that crestal bone height was reduced in both flap and flapless techniques. On comparing the bone loss, the flapless approach showed statistically significant lesser reduction as determined by radiovisiography. The study has been done to evaluate crestal bone level using flap and flapless technique. It was seen that reduction of crestal bone height was seen in both flapless and with flap techniques. However, on comparison, less bone resorption was observed in flapless technique.

Rehabilitation of a Completely Edentulous Patient with a Mandibular Overdenture-supported by two Immediately Loaded Single Piece Implants

Rehabilitation of a Completely Edentulous Patient with a Mandibular Overdenture-supported by two Immediately Loaded Single Piece Implants

Desegmentation of Ozurdex implant in vitreous cavity: report of two cases

PurposeTo report two cases of desegmentation or fracture of the Ozurdex implant observed immediately after routine intravitreal implantation for macular oedema.PatientsIn two patients receiving intravitreal Ozurdex implant injection, a rare...

Mini Screw Orthodontic Implant as Temporary Crown Restoration to Replace Unilateral Missing Lateral Incisor Post-Orthodontic Treatment

Mini Screw Orthodontic Implant as Temporary Crown Restoration to Replace Unilateral Missing Lateral Incisor Post-Orthodontic Treatment

Immediate provisional restoration of single‐piece zirconia implants: a prospective case series – results after 24 months of clinical function

Aim of this prospective case series was to evaluate the outcome of immediately provisionalized single-piece zirconia implants. A total of 20 zirconia implants were inserted in single-tooth gaps in the maxilla (11) and mandible (9) of 20 patients. Implants were restored with all-ceramic CAD/CAM provisionals without occlusal contacts immediately after placement. Permanent all-ceramic restoration was performed 4months after surgery. Plaque index (PI), bleeding on probing (BOP), Periotest(®) (PV), pink aesthetic score (PES), mean radiographic marginal bone levels (MBL), implant survival and success were evaluated up to 24months. Assessment of PI at baseline and follow-ups after 6, 12, 18 and 24months revealed 27% (±5.3), 24% (±6), 23% (±6.1), 23% (±5.3) and 22% (±6.4), respectively. Evaluation of BOP revealed 25% (±5.6), 21% (±6), 21% (±7.2), 18% (±5.9) and 15% (±5.5), respectively. Implants presented stable at follow-ups (PV). PES improved, but not statistically significant from 8.13 (±1.5) at baseline to 10 (±2) 24months after implantation. Measurements of MBL showed a significant bone loss of 1.01mm within the first year after placement (P<0.001) and 1.29mm 24months post-implant insertion, not reaching further statistically significant levels (P>0.05). One implant was lost 4months after placement, resulting in a survival and success rate of 95%. Clinical and radiographic parameters demonstrated a 95% integration of immediately loaded zirconia single-piece implants. A long-term randomized-controlled clinical trial was initiated to confirm evidence of this protocol.

Functional Load in Oblique Bicortical Implants: Parasinusal Implants and Palatine Implants

The history of intraosseous implantology, as a whole, begins with the introduction of the Formiggini screw. Single-piece implants were subsequently derived from titanium bars. The intrinsic function of the emerging stump was immediate loading. The great stability of the implant in the bone thus demanded was eventually achieved by means of the self-tapping screw and bicortical support. Oblique implants were subsequently adopted to make the best use of the bone available and to avoid zones at risk, such as the maxillary sinus and the inferior alveolar nerve. Angled stumps on osseointegrated 2-stage implants were also described in the literature. There has since been a switch from sunken to single-stage implants in view of the usefulness of immediate loading. Recent articles have illustrated the use of inclined, nonbicortical implants; these are still placed in the spongy bone.

The efficacy of flapless implant surgery on soft-tissue profile comparing immediate loading implants to delayed loading implants: A comparative clinical study

Aims and ObjectivesTo assess the efficacy of flapless implant surgery on soft-tissue profile and to compare the clinical outcomes of flapless implant therapy on immediate loading (IL) implants to delayed loading (DL) implants.Materials and MethodsThe study sample consisted of 20 patients who were partially edentulous in the anterior maxillary region. They were divided into two groups. In group I (IL) 10 implants were placed and immediately provisionalized and restored with a metal ceramic crown on the 14th day. In group II (DL) 10 implants were placed and loaded after 4 months. Single-piece implants were used for the IL group and two-piece implants were used for the DL group. All soft tissue parameters i.e., modified plaque index (mPI), modified bleeding index (mBI), papillary index (PPI), marginal level of soft tissue (ML) and width of keratinized mucosa (WKM) were recorded at baseline, Day 60, Day 120 and Day 180.Results:The success rate in group I was found to be 80%, which was lower than the success rate in group II which was found to be 90%. On comparison, there is no statistically significant difference in success rate between the two study groups. There was no statistically significant difference between the groups over time in parameters like mPI, mBI, ML and WKM. The mean PPI score in group II showed a significant increase from when compared to group I.Conclusion:The results of this study indicated that flapless implant surgery using either immediately loading implants or DL implants, demonstrate enhancement of implant esthetics.

BENDABLE VS. ANGULATED DENTAL IMPLANTS: CONSIDERATION OF ELASTIC AND PLASTIC MATERIAL PROPERTIES BASED ON EXPERIMENTAL IMPLANT MATERIAL DATA AND FEA

Bendable and angulated single-piece implants are used alternatively to screwable abutments in two-piece dental implant designs. Though used frequently, data on the stress distribution within such implants are not available and the question whether the bending contributes to fracture resistance has not been addressed. We used the method of finite element to identify von Mises stresses and maximum stresses in bent and non-bent but angulated implants. Implants with one (e.g. applicable to screw designs) or two (applicable to basal implants) bending areas were the variables under investigation. For bends up to 13 degrees we discovered that if there is only one bend, the maximum stress is in the bent area. If two bends are made in two different bending areas, the maximum stresses are distributed between the two and, if either one of the bent areas is machined, there are no residual stresses within the implant body in this area. The maximum stresses are always located near the base-plates. The absolute value of the maximum stress is higher because no residual stresses are available to compensate stresses that stem from loading. Assuming that all other parameters are equal, bendable (basal) implants show a more even stress distribution along the vertical implant region than identically shaped implants with a machine-angulated area. Bendable basal implants therefore probably resist masticatory forces better than pre-angulated, machined implants, and unbent implants which provide a thin region in the vertical implant area.