Patients with risk factors should be warned that infection may still occur several weeks after surgery. The clinicians should observe these patients longer and emphasize keeping their wound clean for a prolonged period. Orv Hetil. 2018; 159(31): 1278-1283.
Background Various surface treatment options have been adopted with the aim to improve osseointegration, reducing the overall treatment time. Implant stability of early loaded implants with different modified surfaces was compared in the present study. Methods Patients were selected from the Department of Oro-Maxillofacial Surgery and Stomatology at Semmelweis University. Patients randomly received SA (alumina sandblasted and acid-etched), NH (bioabsorbable apatite nanocoating) or SLA (large-grit sandblasted and acid-etched) surface implants. Outcome measures were: implant success, implant stability, and periodontal parameters. The implant stability was measured at the time of implant placement (primary stability) and six weeks after (prothesis delivery, secondary stability). Osstell and Periotest were applied to take all the measurements. The primary and secondary stability were compared in the three study groups Finally the periimplant probing depth appearing after three months of loading was checked on 6 points around to the implant-supported prostheses. Shapiro–Wilk and Mann–Whitney tests were used for the comparison between the study groups. Results A total of 75 implants with different length and diameter were inserted into various positions. One implant failed spontaneously at the fourth week after implant placement. The survival rate was 98,7%. Comparing the primary and secondary stability values, the data were significantly improved in every groups. The difference was the highest in the NH group, however, this difference was not significant compared to the two other groups. Good periodontal parameters were experienced in all the tested implants, independently by the groups. Conclusions With the limitation of the present study, all the implants showed improved stability six weeks after implant placement. A trend of higher result was found for the NH group. Further studies with longer follow-up are needed to confirm this preliminary results. Trial registration: Current Controlled Trials ISRCTN13181677; the date of registration: 04/03/2021. Retrospectively registered.
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Bevezetés és célkitűzés: Vizsgálatunkban az alsó bölcsességfog műtéti eltávolítását követő sebgyógyulással foglalkozunk. A posztoperatív antibiotikus terápia kiegészítéseként profilaktikusan alkalmazott antibiotikum és orális antiszeptikum hatásosságát hasonlítottuk össze. Módszer: A vizsgálatban a klinika 71 egészséges betege vett részt. A preoperatív terápiát illetően pácienseinket négy vizsgálati csoportba osztottuk: I. profilaxis amoxicillin-klavulánsavval; II. profilaxis clindamycinnel; III. profilaxis klórhexidinnel; IV. kontroll. Posztoperatívan a terápiát az I. és II. csoportban a profilaktikus antibiotikummal, a III. csoportban random választás szerint, a IV. csoportban clindamycinnel folytattuk. Vizsgáltuk az arcduzzanatot, a szájnyitási korlátozottságot, a seb gyógyulását és a posztoperatív életminő-séget. Eredmények: A profilaxisban részesült betegek posztoperatív szakasza zavartalanabbnak bizonyult. Alveolitis csak a kontrollcsoportban alakult ki, két alkalommal. A kontrollcsoportban 22,2%-ban, a clindamycinprofilaxiscsoportban 14,2%-ban, amoxicillin-klavulánsav profilaxis esetén 10%-ban, klórhexidin alkalmazásakor pedig 5%-ban tapasztaltunk sebszétválást. Következtetés: Az alsó bölcsességfog műtéti eltávolítása kapcsán javasoljuk az indikált antibiotikus terápia profilaxissal való kiegészítését, amelyek közül a klórhexidin az antibiotikummal azonos hatékonysá-gúnak bizonyult. Orv. Hetil., 2017, 158(1), 13-19. Kulcsszavak: alsó bölcsességfog, sebgyógyulás, antibiotikum-profilaxis, klórhexidinProspective randomized study regarding the effect of the preoperative antibiotic and chlorhexidine rinse on wound healing after mandibular third molar surgery Introduction and aim: The study compares the antibiotic prophylaxis combined with postoperative antibiotic therapy to preoperative chlorhexidine rinse combined with postoperative antibiotic therapy in preventing complications after surgical removal of a mandibular third molar. Method: 71 healthy patients in four groups were enrolled in the study: I. prophylactic dose of 2000 mg of amoxicillin clavulanate, continued with amoxicillin clavulanate postoperatively; II. prophylactic dose of 600 mg of clindamycin, continued with clindamycin postoperatively; III. prophylactic chlorhexidin rinsing, continued randomized amoxicillin clavulanate or clindamycin postoperatively; IV. control, with clindamycin postoperatively. Results: The pain was smaller in the prophylaxis groups. Alveolitis occurred only in the control group: 2 patients. Wound opening occurred in 22,2 % in group IV., 14,2 % in group II, 10 % in group I., 5 % in group III. Conclusion: We consider completing the indicated postoperative antibiotic prescription with antibiotic or antiseptic prophylaxis. Chlorhexidin prophylaxis could have the same positive effect.
A szerzők előző közleményükben karbon/karbon állcsontimplantátumokkal kapcsolatos hosszú távú tapasztalataikról számoltak be. A jó funkcionális és esztétikai eredmények értékelése után a szervezet hatását vizsgálták az implantátum struktúrájára és morfológiájára nézve modern felületanalitikai módszerekkel. Nyolc év után eltávolított és be nem ültetett (referencia-) implantátumokat hasonlítottak össze. Mind a referencia-, mind a szervezetből eltávolí-tott implantátum két fő komponense a szén és az oxigén, azonban a szervezet hatására az oxigén mennyisége három-négyszeresére nőtt, és nyomelemmennyiségben foszfort, ként, kalciumot és vasat mutattak ki. Az implantátumokat alkotó szénszálak vastagsága (5-7 μm) a szervezet hatására nem változott meg. A szervezetből eltávolított implantá-tum felületét -a referenciaimplantátum felületén nem található -15-17 μm vastag réteg fedte, amelynek összetétele megegyezett a szénszálak összetételével. (A csontszövetre jellemző nagy mennyiségű kalciumot nem detektáltak.) Mindezek alapján megállapítható, hogy a karbon/karbon implantátumokat a szervezet agresszív hatása jelentős mér-tékben nem változtatja meg sem funkcionálisan, sem szerkezetileg. Orv. Hetil., 2012, 153, 744-750. Kulcsszavak: karbon/karbon implantátum, CarBulat™, állcsont-rekonstrukció, felületanalitikai vizsgálatok, szervezet hatása Carbon/carbon implants in oral and maxillofacial surgery -Part 2In their previous report, the authors presented observations regarding the long-term application of carbon/carbon implants. After evaluating the good functional and aesthetic results, the effect of the human body on the structure and morphology of the implants was investigated with state of the art methods. An implant retrieved from the body after eight years was compared to implants which were sterilized but not implanted (reference). Carbon and oxygen were the main components of both implants, however, as a result of the interaction with the human body the amount of oxygen increased 3-4 times and phosphorus, sulphur, calcium and iron were detectable as trace elements on the surface. The width of the carbon fi bres (5-7 μm) building up the implants was not changed during the interaction with the human body. The surface of the implant retrieved from the human body was covered with a 15-17 μm thick layer, not present on the reference implant, having a similar composition to that of the carbon fi bres (high amount of calcium that is typical to bone tissue was not detected). According to these results, the structure and the morphology of the implants were not altered notably by the human body. Orv. Hetil., 2012, 153, 744-750. Keywords: carbon/carbon implant, CarBulat™, mandibular reconstruction, surface analytical studies, effect of the body (Beérkezett: 2012. március 9.; elfogadva: 2012. március 29.)
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