periodontium


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ligament

 [lig´ah-ment]
1. a band of fibrous tissue connecting bones or cartilages, serving to support and strengthen joints. See also sprain.
2. a double layer of peritoneum extending from one visceral organ to another.
3. cordlike remnants of fetal tubular structures that are nonfunctional after birth. adj., adj ligament´ous.
accessory ligament one that strengthens or supports another.
arcuate l's the arched ligaments that connect the diaphragm with the lowest ribs and the first lumbar vertebra.
broad ligament of uterus a broad fold of peritoneum supporting the uterus, extending from the side of the uterus to the wall of the pelvis.
capsular ligament the fibrous layer of a joint capsule.
conoid ligament the posteromedial portion of the coracoclavicular ligament, extending from the coracoid process to the inferior surface of the clavicle.
coracoclavicular ligament a band joining the coracoid process of the scapula and the acromial extremity of the clavicle, consisting of two ligaments, the conoid and trapezoid.
costotransverse ligament three ligaments (lateral, middle, and superior) that connect the neck of a rib to the transverse process of a vertebra.
cruciate l's of knee more or less cross-shaped ligaments, one anterior and one posterior, which arise from the femur and pass through the intercondylar space to attach to the tibia.
Cruciate ligaments of the knee. From Jarvis, 2000.
crural ligament inguinal ligament.
deltoid ligament of ankle medial ligament.
falciform ligament of liver a sickle-shaped sagittal fold of peritoneum that helps to attach the liver to the diaphragm and separates the right and left lobes of the liver. Called also broad ligament of liver.
gastrosplenic ligament a peritoneal fold extending from the greater curvature of the stomach to the hilum of the spleen.
Gimbernat's ligament a membrane with its base just lateral to the femoral ring, one side attached to the inguinal ligament and the other to the pectineal line of the pubis. Called also lacunar ligament.
glenohumeral l's bands, usually three, on the inner surface of the articular capsule of the humerus, extending from the glenoid lip to the anatomical neck of the humerus.
Henle's ligament a lateral expansion of the lateral edge of the rectus abdominis muscle which attaches to the pubic bone.
inguinal ligament a fibrous band running from the anterior superior spine of the ilium to the spine of the pubis; called also Poupart's ligament.
intracapsulary l's ligaments of the joint capsule that are inside the capsule.
lacunar ligament Gimbernat's ligament.
Lisfranc's ligament a fibrous band extending from the medial cuneiform bone to the second metatarsal.
Lockwood's ligament a suspensory sheath supporting the eyeball.
medial ligament a large fan-shaped ligament on the medial side of the ankle.
meniscofemoral l's two small fibrous bands of the knee joint attached to the lateral meniscus, one (the anterior) extending to the anterior cruciate ligament and the other (the posterior) to the medial femoral condyle.
nephrocolic ligament fasciculi from the fatty capsule of the kidney passing down on the right side to the posterior wall of the ascending colon and on the left side to the posterior wall of the descending colon.
nuchal ligament a broad, fibrous, roughly triangular sagittal septum in the back of the neck, separating the right and left sides.
patellar ligament the continuation of the central portion of the tendon of the quadriceps femoris muscle distal to the patella, extending from the patella to the tuberosity of the tibia; called also patellar tendon.
pectineal ligament a strong aponeurotic lateral continuation of the lacunar ligament along the pectineal line of the pubis.
periodontal ligament the connective tissue structure that surrounds the roots of the teeth and holds them in place in the dental alveoli.
Petit's ligament uterosacral ligament.
phrenicocolic ligament costocolic fold.
Poupart's ligament inguinal ligament.
pulmonary ligament a vertical fold extending from the hilus to the base of the lung.
rhomboid ligament the ligament connecting the cartilage of the first rib to the undersurface of the clavicle.
round ligament of femur a broad ligament arising from the fatty cushion of the acetabulum and inserted on the head of the femur.
round ligament of liver a fibrous cord from the navel to the anterior border of the liver.
round ligament of uterus a fibromuscular band attached to the uterus near the fallopian tube, passing through the abdominal ring, and into the labium majus.
splenorenal ligament a peritoneal fold that passes from the diaphragm to the concave surface of the spleen.
suspensory ligament of axilla a layer ascending from the axillary fascia and ensheathing the smaller pectoral muscle.
suspensory ligament of lens ciliary zonule.
sutural ligament a band of fibrous tissue between the opposed bones of a suture or immovable joint.
tendinotrochanteric ligament a portion of the capsule of the hip joint.
transverse humeral ligament a band of fibers bridging the intertubercular groove of the humerus and holding the tendon in the groove.
trapezoid ligament the anterolateral portion of the coracoclavicular ligament, extending from the upper surface of the coracoid process to the trapezoid line of the clavicle.
umbilical ligament, medial a fibrous cord, the remains of the obliterated umbilical artery, running cranialward beside the bladder to the umbilicus.
uteropelvic l's expansions of muscular tissue in the broad ligament of the uterus, radiating from the fascia over the internal obturator muscle to the side of the uterus and the vagina.
uterosacral ligament a part of the thickening of the visceral pelvic fascia beside the cervix and vagina; called also Petit's ligament.
ventricular ligament vestibular ligament.
vesicouterine ligament a ligament that extends from the anterior aspect of the uterus to the bladder.
vestibular ligament the membrane extending from the thyroid cartilage in front to the anterolateral surface of the arytenoid cartilage behind; called also ventricular ligament.
vocal ligament the elastic tissue membrane extending from the thyroid cartilage in front to the vocal process of the arytenoid cartilage behind.
Weitbrecht's ligament a small ligamentous band extending from the ulnar tuberosity to the radius.

per·i·o·don·ti·um

, pl.

per·i·o·don·ti·a

(per'ē-ō-don'shē-ŭm, -shē-ă), [TA]
The connective tissue that surrounds the tooth root and attaches it to its bony socket; it consists of fibers anchored in the cementum and extending into the alveolar bone; the tissues that surround and support the teeth, including the gingivae, cementum, desmodentium, periodontal fibrs, and alveolar and supporting bone.
[L. fr. peri- + G. odous, tooth]

periodontium

/peri·odon·ti·um/ (-don´she-um) pl. periodon´tia   the tissues investing and supporting the teeth, including the cementum, periodontal ligament, alveolar bone, and gingiva.
Enlarge picture
Periodontium, showing the periodontal ligament attaching the cementum of the tooth root to the alveolar bone of the socket; the collagen fibers of the ligament are grouped into bundles.

periodontium

[per′ē·ō·don′shē·əm] pl. periodontia
Etymology: Gk, peri, around + odous, tooth
1 the tissues that invest or help invest and support the teeth, including the periodontal ligament, gingivae, cementum, and alveolar and supporting bone. also called odontoperiosteum, paradentium, peridontium.
2 See periodontal ligament.

per·i·o·don·ti·um

, pl. periodontia (perē-ō-donshē-ŭm, -ă) [TA]
1. All of the tissues that invest and support the teeth.
2. Synonym(s): periodontal ligament.
[L. fr. peri- + G. odous, tooth]

periodontium

The layer of fibrous, supportive connective tissue between the root of the tooth and the tooth socket. For practical convenience, dentists extend this definition to include the CEMENTUM, the gum surrounding the neck of the tooth and the bone of the socket (alveolar bone).

per·i·o·don·ti·um

, peridentium,pl. periodontia, peridentia (perē-ō-donshē-ŭm, -denshē-ŭm, -donshē-ă, -denshē-ă) [TA]
Connective tissue that surrounds tooth root and attaches it to its bony socket; consists of fibers anchored in cementum and extending into alveolar bone; tissues that surround and support teeth, including gingivae, cementum, desmodentium, periodontal fibers, and alveolar and supporting bone.
Synonym(s): alveolar periosteum, alveolodental membrane, gingivodental ligament, paradentium, peridental membrane.
[L. fr. peri- + G. odous, tooth]

periodontium (per´ēōdon´shēum),

n the tissues that support the teeth, which include the gingivae, cementum of the tooth, periodontal ligament, and alveolar bone).

periodontium

pl. periodontia [L.] the tissues investing and supporting the teeth, including the periodontal ligament, alveolar bone and gingiva.
References in periodicals archive ?
The American Dental Hygienists' Association (AD HA) recommends that, even before teeth begin to erupt, parents thoroughly clean an infant's periodontium after each feeding, using a water-soaked infant washcloth or gauze pad to stimulate the periodontal tissue and remove food.
gingivalis) LPS treatment to simulate local inflammation in periodontium (Figs.
We think that more comprehensive studies are needed to further delineate the effect of IDPF on periodontium.
Any restoration that does not comply with certain morphological elements in relation to the marginal periodontium coating (restoring proximal contact, aperture, crown shape, cervical marginal adaptation) and periodontal support (harmonious occlusal reports) may have periodontal iatrogenic potential.
Unlike the primary occlusion trauma, the secondary one appears as a result of physiological or not occlusal forces on a affected periodontium.
Coverage encompasses anatomy of the periodontium, the etiology, diagnosis, and classification of periodontal diseases, surgical and non-surgical therapies, patient management, and risk factors.
Yam et al [9] proposed that pyogenic granuloma expressed significantly more VEGF and b FGF than healthy gingiva and periodontium.
Several postulated mechanisms have been reviewed, including the virulence effects and role of asymptomatic bacteraemia, focusing on the bacterial load in periodontium facilitating its transmission from oral cavity to the uterus.
One of the often repeated reasons is the lack of progenitor cell populations capable of restoring the different tissues of the periodontium (1).
Numerous case control and cohort studies have indicated that patients with periodontitis have an increased risk of cardiovascular disease (CVD), ie, myocardial infarction, stroke and peripheral arterial disease, when compared with subjects with a healthy periodontium.
constant low level of inflammation, present in the healthy periodontium,
Deficiency of vitamin A is associated with abnormal cell structures in the periodontium, pocket formation, plaque formation, and increased susceptibility to infection.