Chin implant, sliding genioplasty or liposuction? 30 year old female. (Photo)

It appears that beside small chin you have low-set hyoid bone which creates obtuse angle in your neck. This is usually a family trait. Augmentation with chin implants would partially address this problem. A combination of anterior neck lift (to tighten and redistribute anterior neck muscles and reduce deep neck fat, if needed), liposuction and chin implant would be my suggestion (without having a benefit of clinical evaluation). Good luck.

Without an exam your question cannot be answered. However, your photos are helpful and you are probably a good candidate for a Chin Augmentation. You will need to see an Oral/Maxillofacial surgeon to see if othognathic surgery, genioplasty or using an implant is best for your specific case. It should be noted that patients with severely weak jaws or abnormally functioning jaws may be better treated with other facial surgery (orthognathic surgery), although a chin augmentation may be an option at a later time. These patients should seek the advice of a plastic surgeon to determine which course is right for them. Here is some information to help you make this decision: Candidates for Chin Augmentation - Patients whose chin profiles are weak but have normally functioning jaws are candidates for Chin Augmentation. Many of these candidates have used injectable fillers in the past to strengthen the protrusion of their chins, but are looking for a permanent solution. If you are one of these patients, then you are a likely candidate for chin augmentation

The photographs from the side profile demonstrate a weak and recessive chin profile along with fatty deposits in the neck. Placement of a chin implant will help significantly with facial balance and proportions, by augmenting the mandible forward. Chin implants are manufactured in a large variety of sizes and shapes, and are usually placed through a small incision underneath the chin. The size and the shape of the implant is usually determined at the time of the consultation and examination. In our practice, we use Implantech Mittleman chin implants  usually sized small or medium.  The fatty deposits in the neck are removed with liposuction at the same time through the very same incision as the chin implant. For more information  and many examples of both procedures, please see the link and the video below

I believe neither treatments that you suggested  are best for you. You have severe micrognathia (small jaw)  that may even cause you to snore or have sleep apnea. Proper surgery I believe is to correct the source of the problem and not a patch up. 

Thanks for your post. Based on your question and photos, I would favor a well positioned and properly selected silastic chin implant over sliding genioplasty. Implantech, Inc. makes some well designed implants that can offer you both chin projection and possible enhancement of the geniomandibular sulcus (or area on the side of your central chin). This ability of an implant to enhance your facial structure in multi-dimensions, seems to work best for patients who already have good dental relationships. A chin implant may also give you a better soft tissue contour to your submental region. If not, submental liposuction could be done at the same time to further enhance your profile and neckline. Contact your regional Facial Plastic Surgery Society or view the international list of physicians in the AAFPRS and ABFPRS websites for potential physician referrals. Best wishes.