Impact of Orthodontic Treatment on Crestal Bone Resorption in Periodontally Compromised Patients: a Case Series

Svrha: Kako se povećava broj pacijenata s parodontnom bolešću koji se podvrgavaju ortodontskom liječenju (OL-u), a nema izvještaja specifično fokusiranog na utjecaj OL-a u slučaju pregradnje alveolarne kosti (PAK-a), odlučili smo se za retrospektivnu studiju. Ispitanici i postupak: Kod dvadeset i šestero pacijenata ortodontski je liječeno 445 od 645 zuba. Unutar alveolarne kosti srednja im je visina iznosila 0,47 posto prije OL-a. Rendgensko snimanje i χ2-test upotrijebljeni su za procjenu razlike u PAK-u. Rezultati: Nije bilo gubitka zuba. Pokazali smo da (1) OL ne djeluje štetno na potpornu kost liječenog zuba, a s obzirom na to da su srednje vrijednosti resorpcije alveolarne kosti iznosile 0,03 milimetra kod liječenih i 0,26 milimetara kod neliječenih zuba (2), nije bilo statističke razlike u PAK-u između liječenih i neliječenih zuba), tako da (3) duljina aktivnog OL-a nije kritični čimbenik za PAK. Zaključak: OL je kod pacijenata s parodontnom bolešću moguće obaviti i postiže se dobar učinak na PAK.Objective: Since the number of patients with periodontitis undergoing the orthodontic treatment (OT) is increasing and no report specifically focuses on the impact of OT on crestal bone remodeling (CBR), we performed a retrospective study. Materials and Methods: Twenty six patients had OT on 445 over 645 teeth. The mean tooth high inserted into alveolar bone was 0.47% before OT. X-rays and χ2 test were used to evaluate differences in CBR. Results: No tooth was lost. We have demonstrated that (1) OT has no adverse effect on bone supporting the treated teeth (since the mean crestal bone resorption was 0.03 mm and 0.26 mm in treated and untreated teeth, respectively) (2) treated and untreated teeth have no statistical difference in CBR, and (3) the length of active OT is not a critical factor on CBR. Conclusion: OT of periodontally compromised patients can achieve good results on CBR

Meeting report: the Human Genome Meeting (HGM) 2019 in Seoul, Korea

The 2019 Human Genome Meeting (HGM2019) of the Human Genome Organization (HUGO) was held in Seoul, Korea, from 24 to 26 April 2019, at Ewha Woman's University on their beautiful campus (https://en.wikipedia.org/wiki/Ewha_Womans_University). The twenty-third HGM was a truly international event, attracting some 507 registrants from 29 countries spanning 6 continents who interacted both formally and informally at 4 plenary lectures, 10 parallel scientific sessions, 10 ancillary events, such as workshops, luncheon sessions, 2 social events, poster sessions, and interactions with exhibitors. (https://www.hugo-hgm.org/program/scientific). Furthermore, the HGM in Seoul featured 42 international and 7 local distinguished speakers highlighting the worldwide draw of this annual meeting

Effective field theory for the small-x evolution

The small-x behavior of structure functions in the saturation region is determined by the non-linear generalization of the BFKL equation. I suggest the effective field theory for the small-x evolution which solves formally this equation. The result is the 2+1 functional integral for the structure functions at small x.Comment: 5 pages, latex, 2 eps figure