Dental and Medical Problems

Dent Med Probl
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Dental and Medical Problems

2014, vol. 51, nr 1, January-March, p. 27–34

Publication type: original article

Language: English

License: Creative Commons Attribution 3.0 Unported (CC BY 3.0)

Age Dependent Alteration in Bone Surrounding Dental Implant

Zmiany w kości otaczającej wszczep zębowy zależne od wieku

Joanna Hadrowicz1,B,C,D,F, Piotr Hadrowicz1,B,C,D,F, Adam Gesing2,A,C, Marcin Kozakiewicz1,A,B,C,E

1 Department of Oral and Maxillofacial Surgery, Medical University of Lodz, Lodz, Poland

2 Department of Endocrinology and Oncology, Medical University of Lodz, Lodz, Poland

Abstract

Background. Dental implants are versatile solution for the edentulous patients, but implant failure may appear.
Objectives. The aim of this study was to examine the age dependent alterations of microarchitecture in bone surrounding dental implant.
Material and Methods. The study included 249 dental implants in 107 patients. The range of age was 17–67 years old (45.53 ± 12.1). Intra-oral digital X-rays were taken in standardized conditions in all cases: just after implantation, immediately after functional loading, 3, 6, 9, 12, 18, 24 months later. The next step was to geometrically align all radiographs. Two regions of interest were indicated in the bone image [ROI1]: in implant neck region, [ROI2]: in periapical region. Afterwards, the entropy of microarchitecture of bone image was calculated and the analysis of simple regression was performed.
Results. No statistical significance between age and radiological texture in implant surrounding bone was found just after implantation, immediately after functional loading and 3, 6, 12, 18, 24 months after loading (p = 0.201, p = 0.3263, p = 0.0867, p = 0.6844, p = 0.8325, p = 0.4839, p = 0.0677, respectively). Only nine months after loading the implant, the age dependent entropy alteration was found (p = 0.004).
Conclusion. Modern dental implants are as versatile as possible to put to all age patients and entropy is a useful tool for evaluation of bone microarchitecture in standardized radiographs. During remodeling, i.e. 9 months after functional loading in older patients, the authors observed less number of trabeculae than in younger ones.

Streszczenie

Wprowadzenie. Wszczepy zębowe są odpowiednim rozwiązaniem dla bezzębnych pacjentów, lecz może zdarzyć się, że leczenie implantologiczne nie przyniesie oczekiwanych rezultatów.
Cel pracy. Zbadanie zależnych od wieku zmian w radioteksturze kości wokół wszczepów zębowych.
Materiał i metody. Badaniem objęto 249 implantów zębowych wprowadzonych u 107 pacjentów. Zakres wieku wynosił 17–67 lat (45,53 ± 12,1). We wszystkich przypadkach wewnątrzustne zdjęcia były wykonane techniką standaryzowaną: bezpośrednio po implantacji, od razu po obciążeniu i 3, 6, 9, 12, 18, 24 miesięcy później. Następnym krokiem było geometryczne wyrównanie zdjęć. Na zdjęciach uwidaczniających kość zaznaczano 2 miejsca zainteresowania: ROI1 – w obszarze przyszyjkowym, ROI2 – w obszarze przywierzchołkowym. Następnie obliczano entropię radiotekstury obrazu kostnego i wykonywano analizę regresji.
Wyniki. Nie odnaleziono żadnego znaczącego statystycznie powiązania między wiekiem a radiologiczną teksturą kości otaczającej implant ani bezpośrednio po implantacji, ani od razu po obciążeniu oraz 3, 6, 12, 18, 24 miesięcy później (odpowiednio p = 0,201, p = 0,3263, p = 0,0867, p = 0,6844, p = 0,8325, p = 0,4839, p = 0,0677). Wykazano natomiast zmiany w kości zależne od wieku jedynie 9 miesięcy po implantacji (p = 0,004).
Wnioski. Nowoczesne implanty zębowe są odpowiednim rozwiązaniem dla wszystkich pacjentów niezależnie od wieku, a entropia jest przydatnym narzędziem do oceny radiologicznej tekstury kości w zdjęciach standaryzowanych. Około 9 miesięcy po obciążeniu wszczepów u osób starszych pojawiało się mniej beleczek kostnych niż u osób młodych.

Key words

dental implants, radiograph, texture, entropy, age

Słowa kluczowe

wszczepy zębowe, rentgenogram, tekstura, entropia, wiek

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