Background: Implant placement using a conventional surgical guide and digital surgical guide techniques is well documented in the literature. The most frequently reported disadvantages of conventional surgical guide p...Background: Implant placement using a conventional surgical guide and digital surgical guide techniques is well documented in the literature. The most frequently reported disadvantages of conventional surgical guide placement are lack of accuracy in implant placement when compared to three-dimensional assessment in digital technique. Other factors listed are longer time duration and the need for impression techniques. In this case report, the authors present a comparison between the two techniques and the time taken between both cases one done conventionally and another case by digital technique. Case Presentation: For the digital surgical guide, a 44-year-old, male reported with the chief complaint of missing teeth needing replacement was considered. For the conventional technique, a female patient aged fifty-seven who had gone through various dentists with an existing bridge was considered. This patient wanted a good outcome at a reasonable cost. In both cases, molars were missing and needed replacement. The steps for digital flow for a surgical guide and step-by-step conventional methods are both highlighted in this article. Conclusion: Hence the digital technique saved time and was accurate when compared to the conventional in our experience.展开更多
The recent article describes immediate implant placement and loading in the anterior segment. The main aim of this treatment option was to deliver provisional prosthesis to the patient in the same day of surgery, form...The recent article describes immediate implant placement and loading in the anterior segment. The main aim of this treatment option was to deliver provisional prosthesis to the patient in the same day of surgery, form papilla contours, and eliminate waiting of osseointegration time and the second surgery.展开更多
BACKGROUND There are some challenges concerning immediate implant placement in the molar region.Platelet-rich fibrin(PRF),an autologous biomaterial,has been used widely for periodontal intra-bony defects,sinus augment...BACKGROUND There are some challenges concerning immediate implant placement in the molar region.Platelet-rich fibrin(PRF),an autologous biomaterial,has been used widely for periodontal intra-bony defects,sinus augmentation,socket preservation,and gingival recession.However,the literature remains scarce for reports on immediate implants with PRF,particularly in the case of fresh molar extraction socket.CASE SUMMARY The patient was a 43-year-old woman with maxillary molar vertical crown-root fracture.She underwent flapless immediate implant placement into the fresh molar socket with PRF.At the follow-up visit 15 d post procedure,the vascularization of soft tissue was visible.There was no swelling or pain after the surgery.Six months postoperatively,the regeneration of bone and soft tissues was visible.Subsequently,the definitive restoration was placed.The patient was satisfied with the aesthetic outcomes.CONCLUSION The flapless immediate implant placement into the fresh molar socket with PRF is a feasible procedure.This case report demonstrates that PRF promotes bone and soft tissue regeneration apart from having an enhanced anti-inflammatory ability.Furthermore,the procedure involves a minimally invasive technique,thus reducing the surgical complexity.展开更多
The aim of this study was to compare the bone resorption differences between implant placement sites (IPS) and non-implant placement sites (NIPS) after autogenous block bone grafts in the anterior maxilla. Fourteen pa...The aim of this study was to compare the bone resorption differences between implant placement sites (IPS) and non-implant placement sites (NIPS) after autogenous block bone grafts in the anterior maxilla. Fourteen patients (58 edentulous sites) with alveolar atrophy in the anterior maxilla were treated with autogenous block bone grafts. CBCT examinations were performed at 1 month before surgery (T0), immediately after surgery (T1), 3 to 4 months after surgery (T2), 6 to 7 months after surgery before implant placement (T3), 12 to 13 months after surgery (T4), and the longest follow-up point (T5). Alveolar crestal and basal bone width (ACBW, ABBW), and alveolar bone height (ABH) were measured and divided into IPS (30 sites) and NIPS (28 sites). All results were compared by the Wilcoxon Signed Rank test. The bone resorption changes for both groups were the same. For these three parameters, ACBW didn’t change significantly from T2 to T3 and T4 to T5, ABBW didn’t change at every period from T2 to T5, and ABH didn’t change from T4 to T5. The bone resorption volume of ACBW and ABH in NIPS were more than in IPS after implant placement surgery, while the volume of ABBW was similar in both groups. At T5, the bone resorption percentages of ACBW, ABBW, and ABH were 25.57%, 16.85% and 43.84% in IPS, and 33.55%, 15.92% and 46.44% in NIPS. A more rapid loss of alveolar crest in NIPS resulted from implant placement surgery, and this reminded us of the importance of immediate implant placement.展开更多
BACKGROUND Bone deficiency and soft tissue atrophy in the absence of maxillary lateral incisors are among the most challenging problems for implant clinicians.Autologous bone grafting is the gold standard for bone aug...BACKGROUND Bone deficiency and soft tissue atrophy in the absence of maxillary lateral incisors are among the most challenging problems for implant clinicians.Autologous bone grafting is the gold standard for bone augmentation,but not without limitations.Platelet-rich fibrin(PRF),a biodegradable autologous biomaterial,has been widely used for bone and soft tissue management.Moreover,titanium plate is an advantageous barrier due to its good space-maintaining ability.However,there is a lack of literature on implant site development using titanium plate and PRF for congenitally missing maxillary lateral incisors.CASE SUMMARY The patient was a 19-year-old girl with a congenitally missing tooth(#12).She underwent implant placement and simultaneous autologous bone grafting with titanium plate and PRF.At the follow-up visit 15 d post-procedure,the vascularization of soft tissue was visible.There was no swelling or pain after the surgery.Six months postoperatively,bone regeneration was evident.Subsequently,the definitive restoration was placed,and the patient was satisfied with the esthetic outcomes.CONCLUSION Implant site development using titanium plate and PRF for congenitally missing maxillary lateral incisors is a feasible procedure.In this case,the labial bone plate was displaced but remained connected to the base bone,ensuring blood supply.The titanium plate fixed the labial bone plate and maintained the osteogenic space,while the PRF provided growth factors and leukocytes for bone and soft tissue regeneration.Furthermore,the procedure reduced the surgical complexity and adverse reactions,displaying outstanding esthetic outcomes.展开更多
目的:探讨髂内动脉球囊预置阻断术在植入型凶险性前置胎盘中的临床价值。方法:选取2021年7月—2024年1月阳江市人民医院收治的60例植入型凶险性前置胎盘患者。根据随机数表法将其分为对照组与观察组,各30例。两组均行剖宫产,对照组应用...目的:探讨髂内动脉球囊预置阻断术在植入型凶险性前置胎盘中的临床价值。方法:选取2021年7月—2024年1月阳江市人民医院收治的60例植入型凶险性前置胎盘患者。根据随机数表法将其分为对照组与观察组,各30例。两组均行剖宫产,对照组应用常规止血措施,观察组应用双侧髂内动脉球囊预置术。比较两组围手术期指标、新生儿情况、子宫切除率、并发症。结果:观察组术中出血量少于对照组,手术时间与住院时间均短于对照组,差异有统计学意义(P<0.05)。两组新生儿出生1 min、5 min、10 min Apgar评分比较,差异无统计学意义(P>0.05)。观察组子宫切除率、并发症发生率均低于对照组,差异有统计学意义(P<0.05)。结论:双侧髂内动脉球囊预置术应用于植入型凶险性前置胎盘患者中效果显著,能够减少产妇术中出血量,降低大出血风险,缩短手术时间和住院时间,降低患者子宫切除率与术后并发症发生率。展开更多
Background: Advancing surgical reconstructive methods and demanding prosthetics need accurate and precise implant placements. Positioning dental implant is vital in both prosthetic and aesthetic perspectives. The opti...Background: Advancing surgical reconstructive methods and demanding prosthetics need accurate and precise implant placements. Positioning dental implant is vital in both prosthetic and aesthetic perspectives. The optimal three-dimensional placement not only reduces biomechanical complications but also imprecates the odds of implant failure. Materials & Methods: By using robust text mining, searching and retrieval tools, 350 relevant articles were found and then out of them 161 articles were short listed for our review. They included systematic reviews, meta-analyses, case series and experimental studies. Conclusions & Results: Conventional freehand implant placement techniques remain experts’ favorite for uncompromised cases. However, for compromised cases that demand accuracy and predictability, various computer-based methods are in use. While computerized tomography techniques and use of interactive software prevalent in treatment planning, computer-aided design or computer-aided manufacturing (CAD/ CAM) fabricated surgical guides enable implantologists for more successful implantations.展开更多
文摘Background: Implant placement using a conventional surgical guide and digital surgical guide techniques is well documented in the literature. The most frequently reported disadvantages of conventional surgical guide placement are lack of accuracy in implant placement when compared to three-dimensional assessment in digital technique. Other factors listed are longer time duration and the need for impression techniques. In this case report, the authors present a comparison between the two techniques and the time taken between both cases one done conventionally and another case by digital technique. Case Presentation: For the digital surgical guide, a 44-year-old, male reported with the chief complaint of missing teeth needing replacement was considered. For the conventional technique, a female patient aged fifty-seven who had gone through various dentists with an existing bridge was considered. This patient wanted a good outcome at a reasonable cost. In both cases, molars were missing and needed replacement. The steps for digital flow for a surgical guide and step-by-step conventional methods are both highlighted in this article. Conclusion: Hence the digital technique saved time and was accurate when compared to the conventional in our experience.
文摘The recent article describes immediate implant placement and loading in the anterior segment. The main aim of this treatment option was to deliver provisional prosthesis to the patient in the same day of surgery, form papilla contours, and eliminate waiting of osseointegration time and the second surgery.
基金Supported by Interdisciplinary Project for Ph.D. students of Jilin University,No.10183201846 X.S
文摘BACKGROUND There are some challenges concerning immediate implant placement in the molar region.Platelet-rich fibrin(PRF),an autologous biomaterial,has been used widely for periodontal intra-bony defects,sinus augmentation,socket preservation,and gingival recession.However,the literature remains scarce for reports on immediate implants with PRF,particularly in the case of fresh molar extraction socket.CASE SUMMARY The patient was a 43-year-old woman with maxillary molar vertical crown-root fracture.She underwent flapless immediate implant placement into the fresh molar socket with PRF.At the follow-up visit 15 d post procedure,the vascularization of soft tissue was visible.There was no swelling or pain after the surgery.Six months postoperatively,the regeneration of bone and soft tissues was visible.Subsequently,the definitive restoration was placed.The patient was satisfied with the aesthetic outcomes.CONCLUSION The flapless immediate implant placement into the fresh molar socket with PRF is a feasible procedure.This case report demonstrates that PRF promotes bone and soft tissue regeneration apart from having an enhanced anti-inflammatory ability.Furthermore,the procedure involves a minimally invasive technique,thus reducing the surgical complexity.
文摘The aim of this study was to compare the bone resorption differences between implant placement sites (IPS) and non-implant placement sites (NIPS) after autogenous block bone grafts in the anterior maxilla. Fourteen patients (58 edentulous sites) with alveolar atrophy in the anterior maxilla were treated with autogenous block bone grafts. CBCT examinations were performed at 1 month before surgery (T0), immediately after surgery (T1), 3 to 4 months after surgery (T2), 6 to 7 months after surgery before implant placement (T3), 12 to 13 months after surgery (T4), and the longest follow-up point (T5). Alveolar crestal and basal bone width (ACBW, ABBW), and alveolar bone height (ABH) were measured and divided into IPS (30 sites) and NIPS (28 sites). All results were compared by the Wilcoxon Signed Rank test. The bone resorption changes for both groups were the same. For these three parameters, ACBW didn’t change significantly from T2 to T3 and T4 to T5, ABBW didn’t change at every period from T2 to T5, and ABH didn’t change from T4 to T5. The bone resorption volume of ACBW and ABH in NIPS were more than in IPS after implant placement surgery, while the volume of ABBW was similar in both groups. At T5, the bone resorption percentages of ACBW, ABBW, and ABH were 25.57%, 16.85% and 43.84% in IPS, and 33.55%, 15.92% and 46.44% in NIPS. A more rapid loss of alveolar crest in NIPS resulted from implant placement surgery, and this reminded us of the importance of immediate implant placement.
基金Supported by Developmental Plan Project of Science and Technology at Jilin Province,No.20200201302JC.
文摘BACKGROUND Bone deficiency and soft tissue atrophy in the absence of maxillary lateral incisors are among the most challenging problems for implant clinicians.Autologous bone grafting is the gold standard for bone augmentation,but not without limitations.Platelet-rich fibrin(PRF),a biodegradable autologous biomaterial,has been widely used for bone and soft tissue management.Moreover,titanium plate is an advantageous barrier due to its good space-maintaining ability.However,there is a lack of literature on implant site development using titanium plate and PRF for congenitally missing maxillary lateral incisors.CASE SUMMARY The patient was a 19-year-old girl with a congenitally missing tooth(#12).She underwent implant placement and simultaneous autologous bone grafting with titanium plate and PRF.At the follow-up visit 15 d post-procedure,the vascularization of soft tissue was visible.There was no swelling or pain after the surgery.Six months postoperatively,bone regeneration was evident.Subsequently,the definitive restoration was placed,and the patient was satisfied with the esthetic outcomes.CONCLUSION Implant site development using titanium plate and PRF for congenitally missing maxillary lateral incisors is a feasible procedure.In this case,the labial bone plate was displaced but remained connected to the base bone,ensuring blood supply.The titanium plate fixed the labial bone plate and maintained the osteogenic space,while the PRF provided growth factors and leukocytes for bone and soft tissue regeneration.Furthermore,the procedure reduced the surgical complexity and adverse reactions,displaying outstanding esthetic outcomes.
文摘目的:探讨髂内动脉球囊预置阻断术在植入型凶险性前置胎盘中的临床价值。方法:选取2021年7月—2024年1月阳江市人民医院收治的60例植入型凶险性前置胎盘患者。根据随机数表法将其分为对照组与观察组,各30例。两组均行剖宫产,对照组应用常规止血措施,观察组应用双侧髂内动脉球囊预置术。比较两组围手术期指标、新生儿情况、子宫切除率、并发症。结果:观察组术中出血量少于对照组,手术时间与住院时间均短于对照组,差异有统计学意义(P<0.05)。两组新生儿出生1 min、5 min、10 min Apgar评分比较,差异无统计学意义(P>0.05)。观察组子宫切除率、并发症发生率均低于对照组,差异有统计学意义(P<0.05)。结论:双侧髂内动脉球囊预置术应用于植入型凶险性前置胎盘患者中效果显著,能够减少产妇术中出血量,降低大出血风险,缩短手术时间和住院时间,降低患者子宫切除率与术后并发症发生率。
文摘Background: Advancing surgical reconstructive methods and demanding prosthetics need accurate and precise implant placements. Positioning dental implant is vital in both prosthetic and aesthetic perspectives. The optimal three-dimensional placement not only reduces biomechanical complications but also imprecates the odds of implant failure. Materials & Methods: By using robust text mining, searching and retrieval tools, 350 relevant articles were found and then out of them 161 articles were short listed for our review. They included systematic reviews, meta-analyses, case series and experimental studies. Conclusions & Results: Conventional freehand implant placement techniques remain experts’ favorite for uncompromised cases. However, for compromised cases that demand accuracy and predictability, various computer-based methods are in use. While computerized tomography techniques and use of interactive software prevalent in treatment planning, computer-aided design or computer-aided manufacturing (CAD/ CAM) fabricated surgical guides enable implantologists for more successful implantations.
