Thesis (M.Sc.) -Cairo University, 2024.

Bibliography: pages 59-68.

Background: Dentistry is a high-risk profession for neck pain due to stressful work
positions such as neck flexion, arm abduction, and faulty postural positions, which
can cause a forward head posture (FHP). It might affect the hand grip strength (HGS)
which is considered the functional unit of the dentists.
Objective: To explore whether there is a relationship between FHP and HGS among
dentists with and without mechanical neck pain.
Methods: A cross-sectional study was conducted on sixty-six right-handed dentists
who were allocated into 3 groups as follows Group A had FHP and chronic
mechanical neck pain CMNP, Group B had FHP without CMNP, and Group C was
healthy matched dentists in age and BMI. Dentists had FHP with a craniovertebral
angle (CVA) less than 50° as a reference angle with and without mechanical neck
pain compared to healthy matched dentists. All participants were assessed for FHP
by photometric measurement of craniovertebral angle (CVA), neck pain by the
visual analogue scale (VAS), and neck disability by the neck disability index Arabic
version (NDI-AR) and the hand grip strength of both hands by JAMAR plus hand
dynamometer.
Results: There was a statistically significant difference in the mean values of HGS
between the groups (P=0.013), group A had the lowest scores of HGS among the
three groups. In group A, there was a weak inverse relationship between neck pain
and forward head posture with both right- and left-HGS but it was not statistically
significant. In group B, there was a non-significant weak direct correlation between
CVA and right- and left-HGS.
Conclusion: Forward head posture and neck pain may have a minor association with
hand grip strength among dentists.

أجريت الدراسة لمعرفة ما إذا كانت هناك علاقة بين وضعية الرأس الأمامية وقوة قبضة اليد بين أطباء الأسنان الذين يعانون أو لا يعانون من آلام الرقبة الميكانيكية. مواد البحث واساليبه: شارك ستة وستون طبيب أسنان أيمن اليد تم توزيعهم على ثلاثة مجموعات كما يلي (مجموعة ا، مجموعة ب، مجموعة ج) والذين لديهم وضعية رأس أمامية وزاوية قحفية فقرية أقل من °50 كزاوية مرجعية مع ألم ميكانيكي أو بدونه في الرقبة مقارنة بأطباء الأسنان الأصحاء المتطابقين. وقُيِّم جميع المشاركين بالنسبة لـ وضعية الرأس الأمامية من خلال تصوير زاوية القحفية الفقرية، وتحليل الصور عن طريق برنامج كينوفيا وآلام الرقبة من خلال مقياس التناظر البصري، وعجز الرقبة من خلال النسخة العربية من مؤشر الإعاقة في الرقبة، وقوة قبضة اليد من خلال مقياس الديناميت اليدوي.

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Text in English and abstract in Arabic & English.