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Movable Vs Static Sex Doll Jaw: Weighing Up The Pros And Cons
Few purchasers think about the jaw until they have to choose between two otherwise identical dolls. With a movable jaw (also called a ROS jaw or a hinged jaw) the mouth can open and close. Under a static or fixed jaw, the mouth remains permanently closed. Both types are worth having in some situations; the right pick depends on what you in fact want from the doll.
 
The Case for a Fixed Jaw
A fixed jaw is exactly what it sounds like: the mouth is sculpted closed and stays closed permanently. The doll consistently looks the same way anyway of pose, mood or context, as the expression is locked in place. The closed-mouth expression is normally the most natural and good-looking anyway, so for most customers this is perfectly fine. With the right sculpt a calm closed mouth reads as confident, approachable or serene, and it doesn't need to move to do so.
 
A Wider Range of Expressions
By opening and closing the mouth, a movable jaw gives a much broader range of expressions. Flexibility is the draw: surprised, aroused, mid-speech, or mid-anything else you can picture, which suits photography and roleplay. Inside the head sits a hinge, and a small mechanism ordinarily concealed in the neck or the back of the head moves the jaw. An open mouth becomes a workable opening, and for certain kinds of use some buyers find that more realistic.
 
Expression Between Shots
Expressiveness is where a movable jaw largely shines. With a closed mouth a doll only ever looks one way, but with a movable jaw she can look numerous different ways depending on how the jaw is positioned. Huge for photography, this lets you change the expression between shots without changing the doll. Because the mouth actually opens and closes rather than staying fixed, a movable jaw gives roleplay a layer of realism that a static jaw can't match.
 
Realism for Intimacy
The second upside is functional realism. Compared with a static jaw, a movable one is truly more realistic for purchasers who use the mouth during intimacy, since it opens and closes as a genuine mouth does. More detail is generally sculpted into the mouth interior on movable-jaw dolls, as it's designed to be seen, which makes the tongue and teeth more prominent. Depending on the customer, this matters a lot or not at all, and it's worth knowing when oral use is a priority.
 
Benefit Three: Natural in Certain Poses
The movable jaw's third benefit is looking more natural in certain poses. An open mouth looks more calm and natural when a doll is lying down, for instance, whereas a closed mouth can look a little stiff. Certain sitting or reclining poses work the same way, with an open mouth looking more lifelike than a closed one. The effect isn't dramatic, but you can see it in photos and in individual, which is one reason photographers lean towards movable jaws.
 
Subtle or Exaggerated? It Depends on the Sculpt
Facial structure changes with a movable jaw, the first downside. When the jaw is open, the cheeks pull back, the chin drops, and the nose angle shifts, and the doll looks different from her closed-mouth photos. With some dolls the difference is subtle, and the open mouth looks natural all the same. On other dolls, an exaggerated or unnatural open mouth leaves them looking less attractive than with the mouth closed. Before committing, see photos of both states, since this varies hugely between sculpts.
 
Not Dealbreakers, but Worth Knowing
The second drawback is mechanical complexity. With a movable jaw there are more parts, more ways to break, and more potential for problems over time. The interior of the mouth can be harder to clean, the jaw can become misaligned, and the hinge mechanism can loosen. Worth knowing about, though not dealbreakers, these issues don't impact a static jaw, which will never develop a jaw-related complication.
 
Spending the Savings Where It Matters
The third disadvantage is cost. Not every buyer wants to pay the premium for a movable jaw, even though it ordinarily adds only a modest quantity to the cost. The additional cost of a movable jaw is wasted money if you're not planning to use the mouth and you're glad with the closed-mouth expression. Budget buyers face the same question; a better skeleton or wig may well add more to the overall experience than a movable jaw.
 
When You Don't Want More Upkeep
Number four on the list of disadvantages: a movable jaw can be harder to clean. The interior of the mouth is more accessible, but it's also more of a trap for moisture and bacteria, and it needs to be dried fully after every use. A static mouth is simpler to clean because the interior isn't designed to be accessible, and the cleaning routine is faster and less involved. Less upkeep is what a static jaw offers, which makes it the functional choice if extra maintenance doesn't appeal.
 
Experienced Photographers vs Beginners
A fifth drawback is photography. Shooting a movable jaw well is trickier than it sounds, because the open mouth won't invariably fit the pose or the lighting. A closed mouth looks natural on camera in almost any setting; an open mouth demands more careful framing and posing. Unless you're a seasoned photographer, a static jaw will deliver better results more consistently than a movable one.
 
Display vs Roleplay and Photography
The sixth disadvantage is that the open mouth can look unnatural in certain contexts. With a closed mouth the same doll looks composed and natural, but a doll sitting quietly on a shelf with her mouth wide open looks odd. If the doll will be put on display rather than used for roleplay or photography, opt for a static jaw: its default expression is more fitting.
 
Matching the Jaw to Your Plans
Ask what you in fact want from the doll, and the decision chiefly makes itself. For purchasers after photography and roleplay with maximum expressiveness, the movable jaw's premium is worth paying. For buyers after companionship and intimacy with the most natural-looking face possible, a static jaw is normally the better choice. Unsure which to opt for? A static jaw is safer: cheaper, simpler, and free of jaw-related difficulties.
 
A Hybrid Option
There's a middle ground offered by some manufacturers, and it's a movable jaw designed to stay mostly closed. With these dolls the mouth can open, but the default is closed and the jaw only opens when you actively open it. The doll keeps a natural look in her default pose yet can still express herself on demand, so you get the best of both worlds. Worth asking about, this middle ground, if you're torn between the two choices.
 
Changing Your Mind About the Jaw
Stuck choosing between static and movable jaws on a doll that's otherwise the same? Compare photos of each. Check the open mouth against the closed one, and decide whether you'd in fact use the expression. Keep your money and acquire the static version if the open mouth is something you can't picture using. If you can picture employing it, the premium for a movable jaw is worth it. Whichever you pick, you're not stuck: buying a different head with the opposite jaw type later is possible if you change your mind, one genuine upside of dolls with removable heads.
 
Do the Research Before Buying
Another question worth asking is one about quality. Movable jaws vary enormously between producers in terms of how smoothly they operate and how well they hold their position. Decent movable jaws open smoothly and stay where you put them; poor ones are stiff, awkward and prone to drooping. Considering a movable jaw? Ask the vendor for a video or intricate description of how the mechanism works, and don't be afraid to walk away if the answer isn't reassuring. Take the time to research; a poor movable jaw is a worse buy than a solid static one.
 
The Maintenance Question
There's a maintenance question here too, and it's worth thinking through. More careful cleaning is needed for movable jaws than static ones, since the mechanism makes small gaps where moisture and bacteria can accumulate. Lax drying of the mouth interior after use can saddle a movable jaw with complications that a static jaw would never have. Whether you'll actually do the maintenance is the honest question to ask; it isn't a reason to rule movable jaws out totally. A movable jaw will add to the cleaning routine if you already find it a chore, and that's worth factoring into the decision.
 
The Bottom Line on Jaw Types
The bottom line is uncomplicated: neither jaw type is universally better. Both have their fans, both are valid, and both come with their trade-offs. The strengths of movable jaws are more expression and practical realism, and those of static jaws are simplicity, lower cost and a more consistently natural look. Select the jaw that matches your plans for the doll rather than the one with the most impressive spec sheet entry. The widest range of circumstances and poses is where the closed mouth works best, which is exactly why it's the default if you can't decide. More info at this A Straight-Up Lowdown on Sex Dolls- Start Here (http://team-uber.com/forum/viewtopic.php?f=3&t=1930) d43_d40  and don't forget A Brutally Honest Word on Sex Dolls Right Now- The Stuff That Matters (https://codeplugs.com/forums/showthread.php?tid=2133) and Your Ultimate Deep Dive Into Modern Sex Dolls- What You Need to Know (http://rc.zeitup.hera-software.de/thread-22221.html). Also check out  have a look here (http://crewride.com/forum/viewtopic.php?p=640787) for more.