scholarly journals COMPARISON BETWEEN STRONTIUM RANELATE AND METAL SUBSTITUTED HYDROXYAPATITE AS GRAFTING MATERIALS IN TREATMENT OF PERI-IMPLANT BONY DEFECTS WITH IMMEDIATE IMPLANTS (CLINICAL AND EXPERIMENTAL STUDY)

2021 ◽  
Vol 9 (5) ◽  
pp. 46-59
Author(s):  
Islam Kandil ◽  
◽  
Enas Elgendy ◽  
Mohamed Anees ◽  
Omar Khashaba ◽  
...  
Keyword(s):  
Bone Density ◽  
Bone Loss ◽  
Dental Implant ◽  
Strontium Ranelate ◽  
Sample Population ◽  
Implant Stability ◽  
Marginal Bone Loss ◽  
Significant Difference ◽  
Hydroxyl Apatite

Objective:The aim of this study is to compare between both of strontium ranelate and metallic substitute of hydroxyapatite as grafting materials in the treatment of peri-implant bony defects with immediate placement of dental implant in type I extraction sites within maxillary esthetic zone among clinical and experimental levels. This assessment was based on clinical, radiographic and histological studies. Subjects and Methods: The present study was carried on two types of population among both experimental levels on experimental white albinus rabbits and on clinical level among human patients for replacement of non-restorable maxillaryanterior and/or premolar teeth within esthetic zone by immediate implant. A written informed consent was obtained from all patients before their participation in this study.Patients were classified into two groups: the first one was with five patients with non-restorable maxillary anterior or premolar tooth that was treated by an immediately placed implant in conjunction with metallic substituted hydroxyapatite while the second one was treated by an immediately placed implant in conjunction with strontium ranelate as grafting material.The second sample population of study was carried out among ten male white (newzland) experimental rabbits with average body weight between 2.5 and 3 KG and within suitable environmental conditions in Medical Experimental Research Center (MERC) in faculty of medicine, Mansoura University. All rabbits sample was also divided equally and randomly in two groups with five rabbits within each one by the same criteria as mentioned where the first group was composed of five rabbits that received dental implant within intentionally made defect in tibia by trephine bur in conjunction with metallic substituted hydroxyl apatite as grafting material within gap between implant and defect and the second group was with the same criteria and procedures with strontium ranelategafting material within the defect. Pre-oparative photographs and cone beam computed topography (CBCT) were taken for study sample population. Within clinical patients, immediately paced dental implant have been placed in anterior esthetic zone with bone grafting around dental implant according to each group, Immediate CBCT and implant stability measurements has been taken after surgery followed by six months follow-up period to evaluate marginal bone loss, bone density, papillary esthetic score, implant stability and probing depth around dental implants. While within experimental animals trephine bur was used to intentionally create the bony defect that will simulate defect around immediate dental implant with grafting material around according to each group with six months follow-up to evaluate marginal bone loss, implant stability,bone density and for histological examination around implant within grafted area. All data were collected and statistically analyzed. Results:Generally among both clinical and experimental levels within both of clinical patients and experimental rabbits, metal substituted hydroxyl apatite (MSHAP) showed better results with significant difference than that presented in other group that has received Strontium ranelate (Sr) as a grafting material to fill the bony marginal gap around immediate dental implant during six months follow-up study period. Results presented high difference of significance between two groups in experimental and clinical levels in concern with both implant stability, marginal bone loss and even in bone quality and denisty when measured after six months follow-up. On the other hand there was no significant difference in concern with soft tissue response after six months in relation with peri-implant probing depth and MSHAP showed slight better results than that of Sr in records of papillary esthetic scores among clinical patients. Histological results showed better response of surrounding bony tissues towards MSHAP than that of Sr with more affinity of osteoblasts and osteocytes to the site of the grafted area. Conclusions:Metallic substituted hydroxyl-apatite (MSHAP) with its additive magnetic molecules within hydroxyapatite structure has better bony response from surrounding bony tissues than that provided by Strontium Ranelate (Sr) according to bone filling and preservation with less marginal loss, more affinity of new osteoblasts and mature osteocytes, long term implant stability after grafting and better bone density and quality at the grafted area around immediate dental implants in anterior maxillary area.

scholarly journals Evaluation of The Bio-Stimulatory Effect of Platelet Rich Fibrin Augmented by Diode LASER Compared to Platelet Rich Fibrin Alone on Dental Implant Replacing Posterior Mandibular Teeth. Randomised Clinical Trial: Split Mouth Study

2019 ◽  
Vol 7 (5) ◽  
pp. 869-875
Author(s):  
Sherif Shafik Mohamed El Bahnasy ◽  
Mohamed Khalifa Zayet ◽  
Tarek Ibrahim El-Ghareeb ◽  
Hoda Abd Kader Saleh
Keyword(s):  
Bone Density ◽  
Dental Implant ◽  
Randomised Clinical Trial ◽  
Control Group ◽  
P Value ◽  
Platelet Rich Fibrin ◽  
Post Operative Pain ◽  
Significant Difference ◽  
And Control

BACKGROUND: Restoring masticatory function and replacing missing teeth with minimal pain and discomfort are the most important issues for the patient and clinician. Nowadays dental implants became the most popular line of treatment to replace missing teeth; offering a comfortable long lasting prosthesis. Osseo-integration reflects the long term success of a dental implant. Many bio-modulators are used aiming to improve the osseointegration and healing around dental implants such as Low-Level Laser treatment (LLLT) and Platelet Rich Fibrin (PRF). PRF has been proven to improve bone repair process around the dental implant. LLLT is considered a noninvasive, safe technique that stimulates osteogenesis and alleviates post-operative pain. AIM: Evaluation of the bio-stimulatory effect of LLLT on a dental implant with PRF compared to PRF alone clinically and radiographically. METHODS: A randomised clinical trial with the split-mouth design was conducted on nine patients with bilaterally missing lower posterior tooth. All patients received one dental implant on each side with PRF. LASER application was performed to one side twice weekly for one month starting on the day of insertion. Post-operative pain was assessed daily through the first week using numerical rating pain scale (NRS) as the primary outcome. Relative peri-implant bone density was measured using direct digital intraoral radiography immediately after insertion, one, four and nine months postoperatively. Implants stability were measured using radio frequency assessment immediately after insertion, four and nine months post-operative as secondary outcomes. RESULTS: The NRS for pain was significantly decreased by the end of the first-week postoperatively in the intervention and control group with a mean of (2.22 ± 1.56) (2.11 ± 1.83) respectively. However, there was no statistically significant difference between the test groups at P-Value (0.892). The relative bone density values were decreased by the end of the ninth month of follow-up in the intervention and control group with a mean of (134.42 ± 16.13) (128.77 ± 33.54) respectively. No statistically significant difference was observed between the two test groups at P-value (0.863). The radiofrequency values for implant stability showed no statically significant difference after nine months of follow up when compared to the initial stability values at the day of insertion in the intervention and control group. The mean radiofrequency values were (67.24 ± 1.79) and (66.9 ± 2.57) respectively, and no statistically significant difference was observed between the two test groups at P-value (0.793) CONCLUSION: There are no statistically significant differences in post-operative pain values, implant stability and bone density between the implant sites treated with PRF augmented by Diode laser compared to implant sites treated by PRF alone.

scholarly journals Treatment of Full and Partial Arches with Internal-Conical-Connection Dental Implants: Clinical Results after 5 Years of Follow-Up

2020 ◽  
Vol 10 (23) ◽  
pp. 8709
Author(s):  
Diego Lops ◽  
Riccardo Guazzo ◽  
Alessandro Rossi ◽  
Antonino Palazzolo ◽  
Vittorio Favero ◽  
...  
Keyword(s):  
Bone Loss ◽  
Dental Implants ◽  
Clinical Results ◽  
Marginal Bone Loss ◽  
Significant Difference ◽  
Distal Aspect ◽  
The Stability ◽  
Maxilla And Mandible ◽  
Implant Loading

The aim of the present investigation is to evaluate the implant therapy outcomes over a period of 5 years and to analyze several patient risk factors influencing the stability of the peri-implant tissues. Seventy-eight patients were consecutively treated between 2009 and 2017 and restored with implant-supported fixed prostheses. The following inclusion criteria were considered: partial or complete edentulism; residual bone volume of at least 3.3 mm in diameter and 8 mm in length; a favorable relationship between maxilla and mandible; at least a minimum 5 year follow-up for each implant included in the statistical analysis. Intraoral radiographs were taken at implant loading and every 12 months during the follow-up visits. They were subsequently stored on a personal computer and analyzed to determine the changes in bone level. Seventy-eight patients receiving 209 implants completed a minimum follow-up period of 5 years. One-hundred dental implants were inserted in the maxilla while 109 were placed in the mandible. Eleven (14.1%) out of 78 treated patients who received 29 (13.9%) dental implants were considered as drop-outs. On the whole, peri-implantitis was diagnosed in three implants. The average final pocket probing depth at implant level was 2.5 ± 1.2 mm. The average final bone loss after 5 years was 0.3 ± 0.4 mm, both at the mesial and distal aspect of the implant. The effects of the prosthesis type, sex and implant site did not statistically influence the marginal bone loss; on the contrary, a statistically significant difference regarding marginal bone loss was detected between smoker and non-smoker patients (p = 0.021). Implants with internal-conical abutment connection showed stable peri-implant bone levels at the medium-term follow-up. Nevertheless, further prospective long-term clinical studies are necessary to confirm these data.

scholarly journals Digital Smile Designed Computer-Aided Surgery versus Traditional Workflow in “All on Four” Rehabilitations: A Randomized Clinical Trial with 4-Years Follow-Up

2021 ◽  
Vol 18 (7) ◽  
pp. 3449
Author(s):  
Francesca Cattoni ◽  
Luca Chirico ◽  
Alberto Merlone ◽  
Michele Manacorda ◽  
Raffaele Vinci ◽  
...  
Keyword(s):  
Bone Loss ◽  
Computer Aided Design ◽  
Immediate Loading ◽  
Time Interval ◽  
Marginal Bone Loss ◽  
Traditional Group ◽  
Post Surgery ◽  
Significant Difference ◽  
Computer Aided

The aim of the present study was to evaluate and compare the traditional “All on Four” technique with digital smile designed computer-aided “All on Four” rehabilitation; with a 4-years follow-up. The protocol was applied to a total of 50 patients randomly recruited and divided in two groups. Digital protocol allows for a completely virtual planning of the exact position of the fixtures, which allows one to perform a flapless surgery procedure with great accuracy (mini-invasive surgery) and also it is possible to use virtually planned prostheses realized with Computer-Aided Design/Computer-Aided Manufacturing (CAD/CAM) (methods for an immediate loading of the implants. After 4 years from the treatments 98% of success were obtained for the group of patients treated with the traditional protocol and 100% for the digital protocol. At each time interval a significant difference in peri-implant crestal bone loss between the two groups was detected; with an average Marginal Bone Loss (MBL) at 4 years of 1.12 ± 0.26 mm in the traditional group and 0.83 ± 0.11 mm in the digital group. Patients belonging to the digital group have judged the immediate loading (92%), digital smile preview (93%), the mock-up test (98%) and guided surgery (94%) as very effective. All patients treated with a digital method reported lower values of during-surgery and post-surgery pain compared to patients rehabilitated using traditional treatment. In conclusion, the totally digital protocol described in the present study represents a valid therapeutic alternative to the traditional “All on Four” protocol for implant-supported rehabilitations of edentulous dental arches.

scholarly journals Rehabilitation of the Completely Edentulous Mandible by All-on-Four Treatment Concept: A Retrospective Cohort Study with Up to 10 Years Follow-Up

Medicina ◽  
2021 ◽  
Vol 58 (1) ◽  
pp. 10
Author(s):  
Tommaso Grandi ◽  
Luca Signorini
Keyword(s):  
Survival Rate ◽  
Bone Loss ◽  
Treatment Concept ◽  
Marginal Bone Loss ◽  
Mechanical Complications ◽  
Prosthesis Survival ◽  
Edentulous Mandible ◽  
Significant Difference

(1) Background and Objectives. Currently, there are no definitive long-term data about clinically significant difference in the failure of prosthesis and implant or marginal bone loss related to the rehabilitation of the completely edentulous mandible by all-on-four treatment concept. The main aim of present investigation was to report the long-term outcomes (10-years follow-up) of complete-arch mandibular rehabilitations based on the all-on-four concept. (2) Materials and Methods. Patients in need of extractions of teeth due to the occurrence of caries and/or severe periodontal disease and patients presented with edentulous mandibles were enrolled to the study. A total of 96 participants (mean follow-up period after intervention of 3185.2 days) were enrolled in the study. Participants were evaluated at the first visit, 10 days after intervention and every year after the intervention. Implant and prosthesis survival, bone loss and both local biological and mechanical complications were evaluated during the follow-up period. (3) Results. An implants’ survival rate of 97.9% was observed at the end of the follow-up period. Biological complications were reported in 19.8% of patients, whereas mechanical complications were reported in 27.1% of cases. The average marginal bone level at baseline was −0.03 mm. A significant marginal bone loss was observed after 10-years follow-up (2.5 mm). Binary logistic regression analysis showed significant association between smoke and both marginal bone loss and local biological complications. Lastly, a significant association was observed between bruxism and mechanical complications. (4) Conclusions. The high implant and prosthesis survival rate and the moderate incidence of biological and mechanical complications observed in present investigation can be associated to several factors such as high implant primary stability, prosthetic design, and control of the occlusal forces.

scholarly journals Clinical and radiological of the effects of two different implant surfaces on marginal tissues

2021 ◽  
Vol 11 (Suppl. 1) ◽  
pp. 152-159
Author(s):  
Muhammet Bahattin Bingül ◽  
Belgin Gülsün
Keyword(s):  
Bone Loss ◽  
Dental Implants ◽  
Dental Implant ◽  
Surface Group ◽  
Plaque Index ◽  
X Rays ◽  
Marginal Bone Loss ◽  
Pocket Depth ◽  
Significant Difference ◽  
Roughened Surface

Aim: In this study, our aim is to compare the effects of dental implants with nano laser excimer technology surface (NLE) and dental implant surfaces (MTX) with micro-roughened surface on marginal tissues with clinical and radiological data. Methodology: A total of 117 dental implants were followed clinically and radiologically. Clinically; Plaque index (silness-leöe), bleeding index in boring, pocket depth were evaluated and recorded 1 week after the insertion of the healing cap, 3 months, 6 months and 12 months after the end of the prosthesis. In the same periods, periapical x-rays were taken with the Rinn Holder method and the amount of marginal bone loss was measured. The data were analyzed with IBM SPSS Statistics Version 22 package program. Results: There was no loss in the implants included in the study. There was no statistically significant difference between the groups in terms of plaque index, bleeding index values (p>0,05). However, the pocket depth of the dental implant group with nano laser excimer technology surface is significantly lower than the micro-roughened surface group. There are statistically significant differences between the groups in terms of radiological marginal bone loss at 0, 3, 6, and 12 months (p<0,05). Radiological marginal bone loss values ​​of the micro-roughened surface group at 0, 3, 6, and 12 months were significantly lower compared to the same periods of the nano laser excimer technology group. Conclusion: It has been determined that the surface properties of dental implants can be effective on marginal tissues. In addition, we believe that routine checks by dentists who perform dental implant applications will increase the success of dental implants.   How to cite this article: Bingül MB, Gülsün B. Clinical and radiological of the effects of two different implant surfaces on marginal tissues. Int Dent Res 2021;11(Suppl.1):152-9. https://doi.org/10.5577/intdentres.2021.vol11.suppl1.23     Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.

scholarly journals Effect of Different Timings of Implant Insertion on the Bone Remodeling Volume around Patients’ Maxillary Single Implants: A 2–3 Years Follow-Up

2020 ◽  
Vol 17 (18) ◽  
pp. 6790
Author(s):  
Giovanni Battista Menchini-Fabris ◽  
Paolo Toti ◽  
Giovanni Crespi ◽  
Ugo Covani ◽  
Luca Furlotti ◽  
...  
Keyword(s):  
Bone Loss ◽  
Bone Remodeling ◽  
Dental Implant ◽  
Volume Loss ◽  
P Values ◽  
Implant Placement ◽  
Single Crown ◽  
Significant Difference ◽  
Delayed Group

Background: To investigate the middle-term effect on bone remodeling of different timings for different implant placement (immediate versus delayed). Methods: Patients with an anterior maxillary failing tooth were treated by single-crown supported by dental implant. Subjects were retrospectively analyzed for 3 years and assigned to one of two predictor groups: nine immediate versus 10 delayed implant placement (1–2 months after tooth extraction). The crestal bone loss around dental implants was measured with the cone beam computerized tomography by fusing pre-operative and post-operative data. Results: The percentage of volume loss registered at 1-year follow-up (%ΔV) was of 7.5% for the immediate group, which was significantly lower (p-values ≤ 0.0002) than the loss of 24.2% for the delayed group. At 3 years, there was a significant difference (p-values = 0.0291) between the two groups, respectively, with a volume loss of 14.6% and 27.1%. When different times were compared, the percentage of the volume loss for the immediate group was different (p-value = 0.0366) between the first and third year (7.5% and 14.6%, respectively). For the delayed group, no significant difference was registered between the 1- and 3-year follow-up. Conclusions: The bone loss around dental implant-supported single-crown with different timing of insertion appeared higher for the delayed group than the immediate group.

scholarly journals Effect of Platelet-Rich Plasma on Bone Healing in Immediate Implants Analyzed by Cone Beam Computerized Tomography: A Randomized Controlled Trial

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Aleshba S. Khan ◽  
Naauman Zaheer ◽  
Abdul M. Zaigham ◽  
Maliha Shahbaz ◽  
Usman Zaheer ◽  
...  
Keyword(s):  
Bone Density ◽  
Bone Loss ◽  
Platelet Rich Plasma ◽  
Controlled Trial ◽  
Marginal Bone Loss ◽  
Implant Placement ◽  
Significant Difference ◽  
Immediate Implant ◽  
Cone Beam Computerized Tomography ◽  
Functional Loading

The possibility of platelet-rich plasma (PRP) on the improvement of bone and adjacent tissue recovery has previously been validated. However, there is insufficient data supporting the use of platelet-rich plasma to improve the healing of bone and adjacent tissues around an implant in the oral cavity. The purpose of this randomized controlled trial was to observe the effect of platelet-rich plasma (PRP) concentrate on marginal bone loss and bone density around immediate implant placement using Cone Beam Computerized Tomography (CBCT). This clinical study was conducted over a period of six months on 12 subjects, who were equally categorized into two groups. Group I was the control, whereas the subjects in Group II received PRP therapy at the surgical site. All subjects were given a standard treatment with a single implant system (DIO UFII hybrid sandblasted acid-etched implants). Inserted implants were analyzed through CBCT, and records were registered at baseline, at the 12th week before functional loading and the 26th week after functional loading. The bone loss was calculated at the proximal (mesial and distal) side of the implant and bone density at baseline, 12th week, and 26th week after implant placement. SPSS version 23.0 was used for statistical analysis of data. The changes in bone levels were measured and compared between the two groups using the Mann–Whitney U test, with no significant difference. Bone density was analyzed by an independent sample t -test, p value ≤ 0.05 was considered statistically significant. Again, no significant difference in bone density was observed between both groups at all three instances. Therefore, it can be concluded that local injection of PRP after immediate implant placement did not show any decrease in marginal bone loss or improvement in bone density. This trial is registered with NCT04650763.

scholarly journals A pilot study on immediate loading dental implants

2021 ◽  
Vol 3 (2) ◽  
pp. 73-77
Author(s):  
Sandeep Mithapara ◽  
Setu P. Shah ◽  
Deval Mehta ◽  
Sonal Madan ◽  
Ekta Mistry
Keyword(s):  
Bone Loss ◽  
Dental Implants ◽  
Immediate Loading ◽  
Marginal Bone Loss ◽  
Extraction Socket ◽  
Extraction Site ◽  
Significant Difference ◽  
Implant Crown ◽  
Distal Aspect

Evolution in the field of dental implantology made the replacement of missing tooth easy and quick. During initial phase of evolution, there was a need of 3 to 6 months of healing period to get teeth on implants but with advancement of technology and research, immediate replacement of missing teeth without waiting period could become a possibility. To access the efficacy of immediate loading in dental implantology using Hexacone® (IHDE DENTAL - Switzerland) dental implant. The objectives were to evaluate pain, infection, recession, loosening of abutment, fracture of implant/crown, de-cementation, peri-implant radiolucency, and marginal bone loss. Five patients (3 male and 2 female) who needed teeth replacement were included in the study. Among 5 patients, 3 patients needed single tooth replacement and the remaining 2 needed segmental replacement. Out of 7 implants 6 implants were placed in the healed bone and 1 was placed in the extraction socket. In case of healed bone, permanent prosthesis were given on 3 day. In case of extraction site, temporary acrylic crown was given on 2 day, which was replaced by permanent prosthesis after 3 month. These patients were evaluated at 7 day, 1 month, 3 months, 6 months and 12 months clinically and radiographically. Infection, prosthetic problems, peri-apical radiolucency, and implant mobility were not observed and marginal bone loss was observed during follow-up periods. On 6 months follow up, 0.5mm and 0.45mm marginal mean bone loss was observed on mesial and distal aspect respectively whereas the same was 1.24mm and 1.14 mm on 12 months follow-up respectively.The immediate loading for dental implants is a successful procedure that decreases the time for the patients to obtain a final restoration satisfying both esthetical and functional problems. Immediately loaded implants survive equally well in extraction socket. No significant difference was seen in survival when implants were placed in healed bone and extraction socket.

scholarly journals Aesthetic Outcomes and Peri-Implant Health of Angled Screw Retained Implant Restorations Compared with Cement Retained Crowns: Medium Term Follow-Up

2021 ◽  
Vol 12 (2) ◽  
pp. 35
Author(s):  
Livia Nastri ◽  
Ludovica Nucci ◽  
Vincenzo Grassia ◽  
Rino Miraldi
Keyword(s):  
Bone Loss ◽  
Functional Results ◽  
Technical Solution ◽  
Marginal Bone Loss ◽  
Single Tooth ◽  
Natural Teeth ◽  
The Aesthetic ◽  
Single Implant ◽  
Single Tooth Implant

Single tooth implant restorations in the aesthetic area are a demanding challenge. If a complete osseointegration is mandatory, the final result has to result in a higher standard of biomimetic and soft tissue health among natural teeth. This outcome is traditionally pursued by cementing crowns over individualized abutments. However, in recent years, the need for controlling peri-implant health and the preference towards a retrievable solution has led to an increase in screw-retained crowns, which is not always applicable when the implant axis is not ideal. In the aesthetic area, the use of a novel technical solution represented by the angled screw channel (ASC) of the abutment has been proposed in order to match the advantages of the screwed solution with the aesthetic demands. The aim of this study was to compare ASC crowns to cemented crowns (CC) in single implant restorations using the white esthetic score (WES) and pink esthetic score (PES) at the crown delivery and at a follow-up of a minimum of 2 years. Peri-implant health and marginal bone loss (MBL) were also evaluated. The mean follow-up was 44.3 months, with a mean MBL of 0.22 mm in the ASC group and 0.29 mm in the CC group. The total WES/PES score was 16.6 for ASC, compared with 17.3 for CC at baseline, and 16.2 and 17.1, respectively, at follow-up. Both of the groups reached a high WES/PES, and this was maintained over time, without signs of peri-implant diseases or bone loss, regardless of the choice of connection. In conclusion, ASC can be adopted in cases where the implant axis is not ideal, with aesthetic and functional results that are comparable to implants restored by cemented crowns.

scholarly journals Evaluation of crestal bone resorption around cylindrical and conical implants following 6 months of loading: A randomized clinical trial

2017 ◽  
Vol 11 (03) ◽  
pp. 317-322 ◽  
Author(s):  
Naser Sargolzaie ◽  
Hamid Reza Arab ◽  
Marzieh Mohammadi Moghaddam
Keyword(s):  
Bone Loss ◽  
Chi Square ◽  
Pocket Depth ◽  
Significance Level ◽  
Crestal Bone Loss ◽  
Significant Difference ◽  
Chi Square Test ◽  
Male Patients ◽  
Maxilla And Mandible

ABSTRACT Objective: The purpose of this clinical study was to evaluate the effect of implant body form (cylindrical and conical implants) on crestal bone levels during 6 months' follow-up after loading. Materials and Methods: A total of 32 SPI implants (19 conical implants/13 cylindrical implants) were randomly placed in 12 male patients using a submerged approach. None of the patients had compromising medical conditions or parafunctional habits. Periapical radiographs using the parallel technique were taken after clinical loading and 6 months later. Clinical indices including pocket depth and bleeding on probing (BOP) were recorded on 6-month follow-up. Data were analyzed by independent samples t-test and Chi-square test with a significance level of 0.05. Results: Six months after loading, crestal bone loss was 0.84 (±0.29) mm around the cylindrical implants and 0.73 (±0.62) mm around the conical types, which was not significantly different (P = 0.54). Pocket depth around the cylindrical and conical implants was 2.61 (±0.45) mm and 2.36 (±0.44) mm, respectively (P = 0.13). BOP was observed among 53.8% and 47.4% of the cylindrical implants and conical (P = 0.13). Bone loss and pocket depth in the maxilla and mandible had no significant difference (P = 0.46 and P = 0.09, respectively). Conclusion: In this study, although bone loss and clinical parameters were slightly higher in the cylindrical implants, there was no significant difference between the conical- and cylindrical-shaped implants.

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