Prosthodontics, Chap9, Verical Jaw Relation تجميعات

- Vertical jaw relation

www.acefitness.org

A coronal plane (also known as the frontal plane) is any verticalplane that divides the body into ventral and dorsal (belly and back) sections. It is one of the three main planes of the body used to describe the location of body parts in relation to each other.

هي المسافة بين الفك العلوي والسفلي

- Vertical separation depends on :-

1- TMJ

2- tone of the muscle

بيحصل severe discomfort على ال TMJ اذا ما اخدنا المقاسات صح حق الفم

.........................

Factors affecting vertical jaw relation.

Teeth

بما انه نحن نتكلم عن الاسنان، فهو اكيد للناس الي معاهم اسنان dentulous patients

- act as Occlusial vertical stops

Musculature

Tonic contractions are those contractions that are maintained from several minutes up to hours at a time.

-opening and closing of muscles determines vertical jaw relation

physiologic rest position n. The habitual postural position of the mandible when at rest in the upright position and the condyles are in a neutral unstrained position in the mandibular fossae معناته لما بكون لقفك بوضع راحة، عاده تكون الاسنان مش متطابقة والشفايف مش مطبوقة كثير

Importance of vertical jaw relation

lower facial height = الوجه يكون في حالة اتزان،

اذا زاد ال VD , ال lower facial height بيزيد الي هو طول الوجه لتحت بيزيد

The Eustachian tube /juːˌsteɪ.ʃən/, also known as the auditorytube or pharyngotympanic tube, is a tube that links the nasopharynx to the middle ear. It is a part of the middle ear.

The vermilion border (sometimes spelled vermillion border) is the normally sharp demarcation between the lip and the adjacent normal skin. It represents the change in the epidermis from highly keratinized external skin to less keratinized internal skin. It has no sebaceous glands, sweat glands, or facial hair

Vertical jaw relation can be reordered in two positions

- at rest

-at Occlusion عند الانطباق

الاسنان ما تكونش تمسك ببعض عند راحة الفم

المسافة دي نسميها Free way space

نسجل الفم عند الراحة وعند الانطباق ثم نقارنهم مع بعض، عند الانطباق لازم دايما يكون 2 الى 4 مللي اقل من راحة الفك.

الفبريكيشن حق الدينشر يكون بال Occlusion عشان يحصل الفراغ عند الريست

Vertical dimension at rest

State of tonic equilibrium = حالة الاتزان )العضلات(

The habitual postural position of the mandible when at rest in the upright position and the condyles are in a neutral unstrainedposition in the mandibular fossae. Also called postural position .

بما انه لازم ما نعمل فابريكيشن او صناعة للدينشر عندما يكون حالة ريست، لهذا لازم نحدد الريست قبل تسجيل الفرتكل جو ريليشن عشان نتجنبه

In the present work the terminology habitual rest position, habitual opening and habitual closing movement has been used instead of the terms physiological rest position and physiological opening orclosing positions.

Factors of PRP

- الجاذبية ووضعية الرأس

- استرخاء جميع العضلات

Reid's base line - Wikipedia

https://en.wikipedia.org › Reid's_base_line

It is defined as a line drawn from the inferior margin of the orbit (Orbitale point) to the auricular point (center of the orifice of the external acoustic meatus, Auriculare point) and extending backward to the center of the occipital bone. Used as the zero plane in computed tomography.

Neuromuscular disease is a very broad term that encompasses many diseases and ailments that impair the functioning of the muscles, either directly, being pathologies of the voluntary muscle, or indirectly, being pathologies of nerves or neuromuscularjunctions.

not definite; without fixed or specified limit; unlimited: an indefinitenumber. 2. not clearly defined or determined; not precise or exact:an indefinite boundary; an indefinite date in the future.

Facial measurements after swallowing and relaxing

ref·er·ence point

ˈref(ə)rəns point/

noun

a basis or standard for evaluation, assessment, or comparison; a criterion.

Translate reference point to

1. نقطة مرجعية

الجلوس بشكل مستقيم ومنصوب

طلب من المريض لعق الشفاه والمضغ

اراحه كتف المريض

عندها سينزل المندبل للريست ونبدا قياس الريفيرنس بوينت ( قمة الانف وقمة الذقن)

Tectile sensation

erect. Erect means "build" or "upright." If you erect a house, you build it. If you stand erect, you hold your body as tall as possible.

نقول للمريض يفتح لقفه حتى يشعر بعدم راحة

ثم نقول له يقفل لقفه ببطئ ، حتى نقطة شعوره براحه ثم ناخد القياسات

بس بما انه تعتمدعلى المريض ضروري نقارنه مع تكنيك ثاني

Anatomic landmarks