Midterm Flashcards
Describe the composition of the nasal septum
(MVP)
The bones of the septum include the maxillary crest, the vomer, and the perpendicular plate of the ethmoid.
Define the major sutures of the skull
- Sagitall - crosses the skull vertically and divides the two partietal bones
- Coronal - across the top of the skull horizontally (like a crown) and separates the frontal bones and parietal bones.
- Lamboid - between the parietal, temporal and occipital bones.
- Metopic - divies the frontal bones at the midline and is bordered posteriorly by the coronal stuture.
Features of the Face
Columella
The columella is like a supporting column in that it provides support for the nasal tip.
Features of the face
Vermilion
Skin of the lip
Features of the face
Philtrum
a long dimple or indentation that courses from the columella down to the upper lip
Features of the face
Bridge of nose
is the saddle-shaped area that includes the nasal root and the lateral aspects of the nose.
Features of the face
Ala
ala nasi is the outside curved side of the nostril
Features of the face
Cupids bow
the top of the upper lip
Features of the face
Philtral columns
These ridges are embryological suture lines that are formed as the segments of the upper lip fuse. The philtrum and philtral ridges course downward from the nose and terminate at the edge of the upper lip.
Facial Skelton Features/Bones
Mandible
The bone that forms the lower jaw
The bones of the septum include the _______, _________, __________-.
- Maxillary crest
- Vomer
- Perpendicular plate of the ethmoid
Facial skeleton
Maxilla
The bone that forms the upper jaw.
Facial skeleton
What are the palatine (hard palate) bones?
- the premaxilla (a single midline bone)
- the palatine processes of the maxilla
- the horizontal plates of the palatine bone.
- These bones are separated by embryological suture lines.
Facial Skelton
Zygomatic bone
forms the cheeks and the lateral walls of the orbits
Facial skeleton
Posterior nasal spine
A midline bony protrusion from the posterior border of the hard palate
Facial skeleton
Anterior nasal spine
The anterior point of the maxilla that corresponds to the base of the columella.
Cranial Skeleton
Frontal bone, parietal bone, occipital bone, temporal bones, sphenoid, ehtmoid.
Facial landmarks on a 6-week embyro
- eyes are at 160 degrees at 6 weeks
- nasal pit
- medial nasal prominence
- stomodeum
- maxillary prominence
- mandibular arch ear hillocks
- 1st pharyngeal goove
Describe the formation of the primary palate
- Begins “formation” at about 6 weeks
- finishes during the 7-8th week
- Embryological development of the face and palate is dependent on the formation of neural crest cells in the embryo
- Palate forms on its own, apart from the secondary palate
- Prior to palatal fusion, the tongue is in a superior and posterior position in the nasopharynx
- once the hard palate is formed, the velum is fused in midline, forming the median raphe. Lastly the uvula is formed. Fusion of the hard palate and velum is usually complete by 12 weeks.
Describe the formation of the secondary palate
- Begins formation at 8 weeks and ends around 10 weeks
- 2 week window for the processes to occur and the maxillary shelves to spring up and the tongue to get out of the way so that the palate can fuse
What is the difference between one-stage and two-stage closure of the palate
- One stage repair: 10 - 24 months
- the most common
- hard and soft palate are repaired all at one time
- Two stage repair: 12 - 24 months
- soft palate is closed then a month or so later the hard palate is closed
- surgeons like to close the palate before on year
- Repairs are done for help with speech outcomes
- there is a downside ,the early surgeries tend to retard the maxillary growth
What is the purpose of a LeFort I
- includes the maxilla only. The maxilla is cut transversely, just above the tooth roots on the alveolar ridge all the way around and the base of the nose. This allows the surgeon to move the alveolar arch and palate as a single unit.
- Usually neutral or beneficial to speech
- will mobilize the alveolar arch and palatete
- teenage timing
What is the purpose of a LeFort II?
- Maxilla is advanced plus the bridge of the nose (nasal pyramid)
- LeFort I plus the bridge of the nose
What is the purpose of a LeFort III?
- Includes the maxilla, the nasal pyramid, part of the orbits and cheek bones are advanced.
What is the relationship between language development and CLP?
- Some reported that children with nonsyndromic clefts show some early deficits in prelinguistic skills during the first 3 years of life
- The open palate can also affect the infan’t place of articulation.
- Unaffected infants use anterior sounds in prespeech production. In contrast, infants with clefts, regardless of type, babble with a predominant use of posterior consosnants, particularly glottal stops and velar.
- Severe hypernasality
- Language impairement usually mild secondary to signficant speech problems
*VP - Hoarseness
- High pitched voice
Delineate the system used to describe the size of the palatine tonsils
- 1+ tonsils are contained within faucial pillars
- 2+ tonsils extend minimally beyond the faucial pillars
- 3+ tonsils obstruct the oropharyngeal inlet to a moderate degree
- 4+ tonsils touch in the midline
What is Waldeyer’s ring?
- Lingual tonsils + palatine + pharyngeal tonsils = waldeyer’s ring (encircles the oral cavity)
- Usually by late teen/early adult years they shrivel up and go away
Describe problems an infant with CL/P might have with nursing
- difficulty with lip seal - if you have a cleft lip it is difficult to latch because the lip spreads
- difficulty with nipple compression
- difficulty developing negative pressure (sucking)
- Nasal regurgitation - the baby is putting in the effort to get the milk but it comes back up because of the opening
- difficulties depending on the type of cleft
Types of lip repair
(STM)
- Straight line repair/lip adhesion (rose-thompson) - tend to leave the lip a little tight
- basic
- done fairly often
- Triangular flap (randall-tennison)
- they add an “arrow” of tissue that gives the lip more fullness so it is not stretched as tight during growth
- Millard rotation advancement
- the triangular piece is put near the nostril as ell to help with nose structure
- Lip adhesion may precede definitive repair
- child might have a lip adhesion followed by a millard rotation repair a few weeks apart
Rules of 10’s
When is the lip repaired?
- 10 weeks
- 10 lbs
- 10 grams of hemoglobin in the blood
Surgical Repair of the clieft palate
Von Langenbeck
- Incisions are made to help relax the tissue to be able to pull the tissue together without tear
Surgical Repair of the clieft palate
V-Y Push Back (Wardill-Kilner)
In this procedure, the initial incisions are similiar to those of the von langenbeck procedure except instead of leaving the mucoperisoteum attached in the front of the mouth, it is cut across a V. The resulting open area is Y shaped. This frees up the mucoperisteum of the whole palate and allows it to be pushed back in an attempt to lengthen it.
Surgical Repair of the cleft palate
Furlow Z-plasty
Close velum and hard palate or just soft palate
- A plastic surgery technique that is used to lengthen tissue
- most complicated of the procedures
- The furlow z-palatoplasty involves reconstruction of the levator sling and lenthening the velum by closing it with opposing Z-plasties.
- This is done by borrowing tissue from the width of the velum to add to the length. The resulting scar looks like a Z.
- flaps from the oral side and nasal side of the velum are laid over each other
Surgical Repair of the clieft palate
Intravelar veloplasty
A surgical reconstruction of the levator veli palatini sling during palatoplasty for correction of a cleft of the velum
Surgical repair techniques for cleft palate (V V F I)
- Von langenbeck
- V-Y push back (wardill-kilner)
- Furlow Z-plasty
- Intravelar veloplasty (veli/velum)
What are the long term/short term concerns with ankyloglossia
- Speech
- dental
- because if the tongue tip is restricted and doesn’t have the normal amount of freedom kids can’t sweep their teeth with their tongue
- their teeth don’t stay as clean
- Breast feeding/bolus manipulation
- social
Discuss factors that increase risk for hypernasality with adenoidectomy
- Velum elevates up against adenoids
- Without adenoids the soft palate has to adjust to the new area gap and sounds often leaks through giving off a hyper nasal sound
- The soft palate will adjust and then speech will be ok
Descibe the three types of malocclusion: Class I, II, III
- Malocclusion refers to an abnormal dental relationship between the maxillary and mandibular teeth during biting
- Normal occlusion: mandibular first molar is 1/2 tooth ahead of maxillary first and molar
- most people fall into this category but with other anomalies
- Class I: normal occlusion with other dental anomalies
- Class II: Mandibular molar is even with or behind maxillary molar
- Class III: mandibular molar more than 1/2 tooth ahead of maxillar molar
- underbite
What is the effect of dentition on speech articulation?
- Obligatory errors: distortion errors caused by structural abnormaility
- Compensatory errors: distortion or substitution errors due to a modification in placement of tongue or lip position to compensate for the structural abnormality
- Class II and III malocclusion: distortion or substitution of lingual-alveolars and or bilabials, labio dental stops for bilabial stops, bilabial fricatives for labio-dental fricatives, and lingual alveolar distortions
- Missing teeth, rotated teeth, open bite: sibilant distortion, more so when anterior teeth are involved, /sh/, less often affricates may be distorted.
- Anterior crossbite: distortion of sibilants or lingual-alveolars. Dorsum contact for tongue tip
- Open bite: anterior distortion of sbililants and affricates
- Supernumerary or ectopic teeth: distortion of lingual-alveolars or interdentals
How does CL/P affect hearing acuity?
- Middle ear disease
- there is a high incidence of middle ear disease in CLP
- Incidence of MED is lower in children with cleft of primary palate only
- MED is the basis for most hearing loss in cleft lip and palate children
- Conductive hearing loss is expected, sensorineural hearing loss may be an indicator of a syndrome
What type of hearing loss is the most common for CL/P ?
- Incidence of conductive loss is higher
- younger = higher risk
- improves with age
- a lot of these incidences occur with illness and when they get older they become more immune to these illnesses
- Conductive loss improves with age
- Similiar incidence of hearing loss with submucous cleft
- No relationship between hearing loss and….
- type of palatal cleft
- type of VP management
- type of surgery
- age at time of surgery
What are the indications for adenoidectomy?
- recurrent sinusitis
- intractable middle ear effusion
- obstructive sleep apnea (75%)
Enlarged palatine tonsils are common, what are the grades?
Graded as 1+, 2+, 3+, 4+
* 1 + contained within the closet, don’t extend beyond the fauscial pillars
* 2 + extend beyond the edge of the pillars, hide posterior pillar
* 3+ larger but not large enough to reach midline
* 4+ large enough to reach the midline (kissing tonsils)
- they do not have to be the same side
- sometimes they can be between two grades
What can happen with enlarged palatine tonsils?
- May cause a muffled resonance
- May cause the tongue to be postured down and forward
- Surgery usually has no effect on speech or it has a positive effect
How are pharyngeal tonsils graded?
Graded by similiar system
* 1+ = 25%
* 2+ = 50%
* 3+ = 75%
* 4+ = 100%
Enlarged Pharyngeal Tonsils-Adenoids
- May block eustachian tube orifice
- May cause hyponasality or NAE
When are adenoids sometimes removed?
Adenoids may be removed when
* enlarged with sleep apnea - 75% are removed for this reason
* Recurrent or persistent otitis media in children age 4 and older
* Recurrent sinusitis
What is Pierre-Robin Sequence?
Not a syndrome - its a sequence
- Can also be caused by physical forces that inhibit mandibular growth in utero
- Includes micrognathia, glossoptosis, and often a characteristic U-shaped cleft palate
- A congenital condition that consists of micrognathia, glossoptosis, and cleft palate; there is often upper airway obstruction for several months after birth.
List five symptoms of VCF syndrome (22q11.2 deletion syndrome)
- velopharyngeal dysfunction
- congenital cardiac anomalies
- chronic middle ear effusion
- mild to moderate mental disability, specific learning disabilities, reading difficulties
- Psychiatric disorders
- Long narrow face, narrow palpebral fissues, Flattened malar eminence (cheekbone), a broad nasal root, a bulbous nasal tip, thin upper lip, often class II malocclusion
List 3 symptoms of Van der Woude Syndrome
- Cleft lip and/or cleft palate
- Bilateral lip pits on the lower lip
- missing teeth
- may have submucous cleft
Syndromes/sequence associated with cleft palate
- VCF syndrome
- Pierre Robin Sequence (can be part of syndrome, not a syndrome by itself)
- Stickler syndrome
- Fetal alcohol syndrome
- Beckwith-Wiedeman Syndrome
Stickler Syndrome indicators
- Eyes
- Ears
- Joint
- Sensorineural hearing loss
What are the classic symptoms of submucous cleft?
- Hypernasality
- Nasal air emission
- Comprensatory articulation errors
- Middle ear diease/hearing loss
- History of nasal regurgitation as an infant
- Bifid uvula
- notching of palatine bone
- muscular diastasis of velum (division of muscle)
- 25-50% have VPD
- about 50% or more will be asymptomatic
When is a submucous cleft palate repaired?
Surgical correction is considered only after speech has developed and velopharyngeal insufficiency has been diagnosed
Describe the impact of maxillary advancement on articulation and resonance
- The purpose of maxillary advancement is to bring the maxilla into proper alignment with the mandible, thus correcting the facial profile and the malocclusion
- the greater the advancement the greater the risk of VPD. Threshold = about 10 mm is a critical threshold.
- some studies show no relationship between advancement and speech
- Articulation generally improves or may be unchaged
- Phonemes most likely to improve include: /s, f, p, cg, sh/ and voiced cognates
Should all patients who anticipate adenoidectomy have an endoscopic exam for speech prior to surgery? Why?
a. No because there is too many of those surgeries that happen.
b. We know patients will have permanent VP issues 1:2000.
c. If there are red flags, then they should go to SLP prior.
- VP issues are caught that could impact child’s speech.
We have the primary palate and a secondary palate. Why is that important to know?
- They form on their own.
- You can have a cleft of the primary and not the secondary
- Its two different clefts.
- But about half the time whatever caused the first problem with cause issues in the secondary palate.
- 50% of the time there’s a cleft in both palates.
- 6-8 weeks primary palate forms, if it doesn’t fuse
- 8-10 weeks secondary palate, 2 week window for the processes to occur and the maxillary shelves to spring up and the tongue to get out of the way so that the palate can fuse.
Passavant’s Ridge
A shelf-like ridge that projects from the posterior pharyngeal wall into the pharynx during speech; occurs as a result of contraction of specific fibers of the superior pharyngeal constrictor muscles; found in normal speakers and speakers with velopharyngeal dysfunction.
Ptosis
Drooping of the eyelid
Wardill-kilner V-Y pushback
- procedure where the inital incisions are similiar to those of the Von Langenbeck procedure except instead of leaving the mucoperiosteum attached in the front of the mouth, it is cut across as a V.
- The resulting open area is Y shaped, this frees up the mucoperiosteum of the whole palate and allows it to be pushed back in an attempt to lengtehn it.
- The levator muscle is still not address
- A high incidnece of anterior fistula’s has been reported
Hypotelorism
Narrow spaced eyes
Hypoplastic
Underdeveloped or defective formation of a tissue or an organ
Microcephaly
Small head circumfrance in comparison to age-matched peers
Hypertrophy
Overgrowth of a structure
VCF
FISH on 22q11
- Deletion of chromosome 22q11.2 with velocardiofacial/22q11.2 deletion syndrome
- With special techniques such as fluoresence in situ hybridization (FISH), submicroscopic segments of DNA can be identified using a fluorescent dye.
- Bloow draw
Corticotomy
A partial cut in the bone
Kernahan’s Y
Cleft
- Model uses a “striped-Y” figure as a means of identifying both the type and extend of the cleft
- The upper “arms” of the Y represent the incisive suture lines of the primary paalte
- The base of the Y represents the median palatine suture line of the secondary palate
- The center point where the arms and. the base connect represents the area of the incisive foramen.
Edentulous
Tooth loss
Diastema
Space or opening between the teeth, usually the middle teeth.
Intravelar veloplasty
A surgical reconstruction of the levator veli palatini sling during palatoplasty for correction of a cleft of the velum
Sequence
The occurrence of a pattern of anomalies that occur because of a single cause
Phenotype
The manifestations of a genotype; range of characteristics associated with a genetic syndrome
Hypertelorism
excessive distance between two paired organs, such as the eyes
Microtia
small or absent external ear or middle ear anomalies
Teratogen
External chemical or physical agents, such as cigarette smoke, drugs, viruses or radiation, that can interfere with normal embyrological developent and result in congenital malformations
Epicanthal Folds
Folds of skin extending from the root of the nose to the eyebrow and covering the inner corner of the eye. This is normal in the Asian population.
Nasal meatuses
The three passages in the nasal cavity that lie under a nasal concha
Dysmorphology
The study of abnormal shape or form
Endogenous
A factor from within the organism rather than from the environment, such as genetic makeup of the organism
Zona pellucida
A bluish area in the middle of the velum that is the result of abnormal insertion of the levator veli palatini muscles, effectively causing the velum to be thin and almost transparent in appearance
Z-plasty
A plastic surgery technique that is used to lengthen tissue