©2021 S’OS
Background: The purpose of this study was to analyze medium-to-long-term implant success and survival rates,
and lower lip sensory disturbance after placement of dental implants with simultaneous inferior alveolar nerve (IAN)
repositioning.
Methods: Fifteen patients (3 men, 12 women) treated in two centers were included in this retrospective study. The
ages of the participants ranged from 19 to 68. A total of 48 dental implants were placed in 23 posterior mandibular
segments simultaneously with IAN transposition or lateralization. The residual bone above the IAN ranged from 0.5
to 7.0 mm. Crestal bone changes were measured using cone beam computed tomography (CBCT) images.
Disturbance of the IAN was evaluated subjectively using a modified questionnaire.
Results: The healing process was uneventful in fourteen patients. In one patient, spontaneous fracture of the
operated mandible occurred on tenth day after the surgery. The implant in the fracture line was removed at the
time of open reduction and fixation. One more implant was lost after 5 years of loading. Therefore, the overall
dental implant survival rate was 95.8%, whereas all implants in function were judged as successful after a follow-up
period of 1 to 10 years. Transient neurosensory disturbances (ND) were observed in all patients who underwent IAN
lateralization and IAN transposition. At follow-up times of 3 years, 5 years, and 10 years, weak hypoesthesia
remained in two subjects treated with IAN transposition. None of the patients developed neuropathic pain after the
procedure.
Conclusions: Within the limitations of this study, we conclude that reconstruction of severely resorbed mandibles
with dental implants in conjunction with IAN repositioning is an effective and reliable technique. Although
neurosensory disturbances are the most common complication after surgery, they tend to resolve over time.
Advanced surgical skills are required to perform this technique.
Keywords: Inferior alveolar nerve transposition, Inferior alveolar nerve lateralization, Dental implant survival rate,
Dental implant success rate, Neurosensory disturbance
Read full article HERE.
George Deryabin and Simonas Grybauskas, International Journal of Implant Dentistry, 2020
Simonas Grybauskas, George Deryabin. 2014
The book will turn your half-day ‘surgical’ cliff-climbing challenge into a nice and smooth 40-60 minutes hiking adventure. “The Bilateral Sagittal Split Osteotomy of the Mandible in Detail” is a ‘must-read’ book for the beginners who are taking first steps and also for the masters who already know everything. What’s in it for you? This book will increase your self-confidence and improve both your surgical success and satisfaction rate of the orthodontists; save time during the surgery when the split starts going wrong; teach you how to adjust the fragments for the osteosynthesis in order to avoid TMD problems afterwards; teach you how to simplify the sequence of surgical steps and minimize the surgery time to 40-60 minutes; teach you how to achieve physiological Class I in a musculo-skeletally stable position and avoid the use of heavy postoperative elastics; help you understand and respect the importance of maintaining the constant position of proximal fragments throughout the surgery.
Book is available for purchase HERE.
Simonas Grybauskas, Dainius Razukevičius. Kaunas, 2019.
For book purchase please contact info@drgrybauskas.com.
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Purpose: The aim of this clinical trial was to evaluate the influence of gingival tissue thickness oncrestal bone loss around dental implants after a 1-year follow-up.
Materials and Methods:Forty-siximplants (23 test and 23 control) were placed in 19 patients. The test implants were placed about 2 mm supracrestally, whereas the control implants were positioned at the bone level. Before implant placement, the tissue thickness at implant sites was measured with a periodontal probe. After healing,metal-ceramic cement-retained prostheses were constructed. According to tissue thickness, the test implants were divided into A (thin) and B (thick) groups. Intraoral radiographs were performed andcrestal bone changes were measured at implant placement and after 1 year.
Results: Mean bone lossaround the test implants in group A (thin mucosa) was 1.61 ± 0.24 mm (SE; range, 0.9 to 3.3 mm) onthe mesial and 1.28 ± 0.167 mm (range, 0.8 to 2.1 mm) on the distal. Mean bone loss in test group B(thick mucosa) implants was 0.26 ± 0.08 mm (range, 0.2 to 0.9 mm) on the mesial aspect and 0.09 ±0.05 mm (range, 0.2 to 0.6 mm) on the distal aspect. Mean bone loss around control implants was 1.8 ±0.164 mm (range, 0.6 to 4.0 mm) and 1.87 ± 0.166 mm (range, 0.0 to 4.1 mm) on the mesial and distalaspects, respectively. Analysis of variance revealed a significant difference in terms of bone lossbetween test A (thin) and B (thick) groups on both the mesial and the distal.
Conclusion: Initial gingivaltissue thickness at the crest may be considered as a significant influence on marginal bone stability around implants. If the tissue thickness is 2.0 mm or less, crestal bone loss up to 1.45 mm may occur,despite a supracrestal position of the implant-abutment interface.INTJ ORALMAXILLOFACIMPLANTS2009;24:712–719
Key words:biologic width, crestal bone loss, dental implants, microgap, mucosal thickness.
Read full article HERE.
Purpose: The aim of this pilot study was to determine what effect thin mucosal tissues can have oncrestal bone stability around implants with platform switching.
Materials and Methods: Twelve 2-piece implants, consisting of 6 implants with horizontally matching implant-abutment connection (control) and 6 implants with platform switching (test) were placed in 4 patients. The mean age of the patients was 43 years (range, 37 to 56 yrs). Mucosal tissue thickness atimplant sites was measured to be 2 mm or less. Implants were restored with 5 splinted crowns and single 3-unit fixed partial denture. Intraoral radiographs were obtained and crestal bone changes were mea-sured at implant placement and after a 1-year follow-up post-treatment. The statistical significance level was set to P less than .05.
Results: Bone loss around the test implants was 1.81 +/- 0.39 mm on the mesial site and 1.70 +/- 0.35 mmon the distal aspect. Control implants overcame marginal bone resorption equaling 1.60 +/- 0.46 mm onthe mesial site and 1.76 +/- 0.45 mm on distal measurement. No statistically significant difference wasfound between control and test implants either mesially (F[1,10]=0.746; P =.408) or distally (F[1,10]=0.080; P =.783).
Conclusion: Within the limitations of this pilot study it can be concluded that implants with platformswitching did not preserve crestal bone better in comparison with implants with traditional implant-abutment connection if, at the time of implant placement, thin mucosal tissues were present.
Read full article HERE.
Stomatologija. 2009;11(3):83-91.
Purpose: The aim of this paper was to distinguish what kind of mucosal tissue, measured at the top of the crest can be referred to as thin, medium or thick and its influence on crestal bone loss around dental implants after a 1-year follow-up.
Materials and methods: Totally 64 implants were evaluated in 26 patients. 32 implants (test group) were placed about 2 mm supracrestally and 32 implants (control group) were positioned equal to the bone level. Mucosal tissues at a time of implant placement were divided into 3 groups–thin, medium and thick. Crestal bone changes were measured at implant placement and after a 1-year follow-up.
Results: Mean bone loss around test implants in thin tissue group (up to 2 mm) was 1.35 mm+/-0.33 SD, in medium thickness group mean bone loss was 0.32 mm+/-0.44 SD and 0.12 mm+/-0.16 SD of bone loss was registered in thick tissue group (3.1 mm and more). Mean bone loss around control implants in all 3 groups was as follows: 1.8 mm+/-0.52 SD in thin, 1.62 mm+/-0.63 SD in medium and 1.55 mm+/-0.47 SD in thick tissue group. ANOVA analysis showed statistically significant differences between 3 groups of thickness, as crestal bone loss around test implants is concerned. (F[2,29]=37.3; P=.000). In control implants bone loss did not vary between 3 groups of tissue thickness (F[2,29]=0.73; P=.503).
Conclusions: It can be concluded that initial tissue thickness can influence crestal bone changes around implants.
Read full article HERE.
Shape It Up’22 BSCOSO | Transverse problems. Orthodontics and surgery
NEW DATE: 9-10 July 2022 Vilnius, Lithuania
Putin’s war in Ukraine has struck us in many ways. It has struck our BSCOSO community too. Here in Lithuania, we are safe. Furthermore, we are safer than ever: we have a concentration of NATO forces located on our land as never before.
Nevertheless, nobody is in power to predict the nearest future for now. We understand, you feel the same. Some of you have downgraded your participation from live to online.
Thus, the situation has driven us to search for the best solution. We took the following arguments into our mind:
Due to all reasons above we have decided to transfer the 11th BSCOSO Spring Course to a new date. The scientific and social programs remain the same as well as the speakers’ faculty. On top of that and to make this shift easier to all of you, we offer many ADDED VALUES.
What are the added values?
Let’s stand together with Ukraine!
We apologise sincerely for the inconveniences caused by changing the date of the course. We take this as a step of standing together with Ukraine and invite you to be a part of it! What relief will be to all of us to meet our Ukrainian fellows and learn together!
Join the donation fund for Ukrainian hospitals!
A crowdfunding campaign to support Ukrainian hospitals has been launched recently by the Lithuanian charity Veido fondas. Keep donating for the Ukrainian hospitals in their heavy conditions and making it possible to save peoples‘ lives.
To donate, please click HERE.
We are looking forward to seeing you all in summer!
We will keep you updated about any further course information regularly.
BSCOSO Team
BSCOSO is starting a brand-new project called ROOTO!
Real-time education and learning through the eyes of a doctor!
ROOTO is an online education platform that offers a new way of learning for maxillofacial surgeons and residents, no matter where you are in the world. Ready to take your development to the next level? Our platform offers a growing library of videos detailing a variety of surgical procedures and techniques, regular live-steaming surgeries, as well as a collection of relevant scientific articles, lectures and podcasts.
Rooto is an educational platform for professionals looking to take advantage of real-time learning and practicing opportunities with top surgeons. We focus on orthognathic and oral surgeries, and other dental procedures through the eyes of a doctor. We have a growing library of videos focused on various techniques, clinical management best practices, practical integration and efficiency. Rooto serves a closed community of experts sharing knowledge and expertise among group members. Join our community to gain exclusive unlimited access to the Rooto video library, related scientific articles, periodical live surgeries, lectures, podcasts and an intimate look inside the operating room.
Our platform is launching with regular livestreaming orthognathic surgeries via a closed Facebook group that approved medical specialists can access.
Join closed Rooto by BSCOSO Facebook group HERE.