Does vertical pattern affect lip strain in open-bite patients?: A cephalometric study

Year 2024, , 115 - 125, 30.08.2024

Ece Başal , Yasemin Bahar Acar , Buket Erdem

https://doi.org/10.30569/adiyamansaglik.1438517

Abstract

Aim: To examine effect of skeletal pattern on lip strain in open-bite, in individuals with normal and increased vertical pattern.
Materials and Methods: 56 open bite patients with Normovergent (NG) and Hyperdivergent (HG) vertical patterns (Mean age: 16.57 years) underwent cephalometric analysis. Soft tissue labial, hard tissue, and dental inclinations were measured. Statistical analyses were performed using Kolmogorov Smirnov, Mann Whitney-U, and independent sample t-tests; Pearson and Spearman correlation analyses; and Linear regression analysis.
Results: In HG, each degree of SN-UOP increase caused 0.371 mm increase in lower lip strain. While in NG, upper lip strain was associated with IMPA and SNB (each degree caused 0.14 mm increase and 0.207 mm decrease respectively).
Conclusion: IMPA, SN-UOP and SNB were found to be the determinants of lip strain. Dental, vertical, and sagittal variables showed association with lower face.

Keywords

Open bite, Cephalometry, Vertical dimension

Ethical Statement

Ethics committee approval was obtained from Medical School Ethical Committee of Clinical Studies of the Marmara University (Protocol no 09.2023.1253; 08/02/2024). The study conformed to the principles of Helsinki Declaration.

Supporting Institution

There is no person/organization that financially supports this study.

Thanks

None.

Açık kapanış hastalarında dik yön gelişimi dudak gerilimini etkiler mi?

Abstract

Amaç: Bu çalışmada açık kapanışlı bireylerde dik yön paterninin dudak gerginliği üzerine etkisinin, normal ve artmış dik yön paternine sahip bireylerle karşılaştırmalı olarak incelenmesi amaçlanmıştır.
Gereç ve Yöntem: Normoverjan (NG) ve Hiperdiverjan (HG) dik yön paternlerine sahip (Ortalama yaş: 16,57 yıl) 56 açık kapanış hastasının lateral sefalometrik röntgenleri analiz edilmiş, hastaların yumuşak doku, sert doku ve dental eğimleri ölçülmüştür. İstatistiksel analizler Kolmogorov-Smirnov, Mann Whitney-U ve bağımsız örneklem t-testleri; Pearson ve Spearman korelasyon analizleri; ve doğrusal regresyon analizi kullanılarak gerçekleştirilmiştir.
Bulgular: HG'de her derece SN-UOP artışı alt dudak geriliminde 0,371 mm artışa neden olmuştur. NG'de ise üst dudak gerilimi IMPA ve SNB ile ilişkili bulunmuştur (Her bir derece artış, sırasıyla 0,14 mm artış ve 0,207 mm azalmaya neden olmuştur).
Sonuç: IMPA, SN-UOP ve SNB'nin dudak geriliminin belirleyicileri olduğu düşünülmektedir. Dental, vertikal ve sagital parametreler alt yüz ile ilişkili bulunmuştur.

Keywords

Açık kapanış, Sefalometri, Dikey boyut

Ethical Statement

İlgili üniversitenin Tıp Fakültesi Etik Kurulu’ndan etik kurul izni alınmıştır. (Protokol no 09.2023.1253)

Supporting Institution

-

Thanks

-

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